Tuesday, February 20, 2007

How I (color blind person) see the world!

A lot of people were asking me "so, what do you see!!". This post is to make you understand what exactly I see. Well, after 27 years I discovered that I see the world in a different way than others, and I am a successful web designer, my color schemes are always bright and nice (this is what people tell me)

I was asking myself, do the green fields which i love look red to normal people?! do normal people see orange like my blue?! when you are born your parents teach you colors, they point to that box and tell you "this is green" they point to this red circle and say "this is red". To them it is green box and red circle but they don't know how you see it! you might see that red circle as what they see blue! so you will point to every blue color you see and say RED (they told you it is red), which they actually see as red! so they won't tell you, you are wrong!

This is of course wrong , I see red as you see it and same with green, but, I see it with different shades. After browsing the internet searching to understand more about color blindness and different types of it, I discovered that I'm red-green color-blind, I also found these images which will help you to better understand what I see.



The images above are a tool to make normal people able to imagine how color blind people see what they see.
In the first image, normal people see a number. But if they look at the 2nd and 3rd images they will see what color blind people see in the first image. The difference between the 2nd and 3rd is just different types of color blindness.



In the upper 3 images I can't see a difference in them, they look the same to me, but to you as normal person you'll see a number in the first one.



In this gradient you (as normal person) will see every number in a box of color which is different to the one next to it. I can't see these boxes, I just see numbers from 0 to 5 as one block with gradient from lime green to yellow but no boxes! same happen from 10 to 15 just a gradient.



The first earth image shows how normal people will see it. The second one shows how a person with a red-green color deficit (deuteranopia) would see it and the third shows how it looks for a blue-yellow color deficit person (tritanopia).



The first colorful hats image shows how normal people will see it. The second one shows how a person with a red-green color deficit (deuteranopia) would see it and the third shows how it looks for a protanopia person, another form of red-green deficit.



People with color deficiencies may have difficulty distinguishing certain colors (e.g., a red-green color deficiency means that reds and greens are more difficult to distinguish). But as this photo demonstrates, many other colors are just as distinguishable to a person with a color deficiency as to someone with normal color vision. The first image shows how normal people will see it. The second one shows how a protanope person would see it and the third shows how it looks for a tritanope person.



The first dotted image is an ishihara plate commonly used to check for red-green color blindness. While on the second image it is what a red-green color-blind person might see. Note that the digit (3) is practically invisible.

You now understand more about what I can see!
hmm, you can start donations now! :)

It is really important to make color tests to your kids!
Color test 1
Color test 2

49 Comments:

Blogger Daniel said...

Nice article and how you explain your color blindness. I'm always astonished how a colorblind can be a designer, for me it would be an impossible task to accomplish.

February 20, 2007 at 10:42 PM  
Blogger Unknown said...

me too is astonished!! :)

February 21, 2007 at 1:06 AM  
Anonymous Anonymous said...

It's not color blindness - it's evolution. The people calling it color blindness are like the fish in the pond who made fun of the fish who had big flippers and could get around land.

May 5, 2007 at 4:31 PM  
Anonymous Anonymous said...

More important, do you see in the infrared; many color blind people do. You look at a verdant live tree and were taught that it was green, but the infra red in a live tree way overpowers the green, so you see the infra red and were taught it was green. If you took a branch and broke it, the infra red fades and you see the green. It looks very different, yet people still tell you it is green. Hence red, infrared and green confusion. This ability of people with "infrared eyes" was used in WW II to spot camouflage. Broken boughs and shrubs still look green to normal eyes, but green to infrared eyes, so infrared eyes pick them out instantly. As well, green paint and netting look green to normal eyes, but not infrared as would living foliage. My father had red-green color blindness and could pick broken twigs out of shrubbery in a snap. If you do have infrared eyes, a living healthy tree looks one color, infrared, fungus infested trees another, and insect infested trees a third color. In the balance, infrared eyes is not such a bad thing if you learn to take advantage of it.

cheers.

May 5, 2007 at 5:15 PM  
Anonymous Anonymous said...

I'm color blind too, this is a cool idea. As for Bruce's comments about infrared, that's just not the case. No humans can see in the infrared, it's just not possible the way our eyes are set up.

You should mention though, that there is more than one type of color blindness, and different extents. For example in the dot charts I can't see the numbers, but I have no problem making out the gradients (I'm red/green colorblind). Also, you should throw up one of the dot charts where colorblind people see a number but regular people don't!

May 5, 2007 at 5:34 PM  
Anonymous Anonymous said...

I was very disappointed with this article. We've all seen these number images; they are nothing new. I don't know why the author thinks he is sharing something new with us.

What I was expecting, and what would have been awesome to see, was images of real world scenes that had been image processed (Photoshopped) to appropriately change the colors into what colorblind people (or at least some of them) see. Now THAT would be cool to see.

May 5, 2007 at 7:18 PM  
Anonymous Anonymous said...

That's quite cool - thanks. I have a few colorblind friends and that helps me to grasp it better. I was going to mention the camoflage, but someone beat me to it :)

May 5, 2007 at 7:20 PM  
Anonymous Anonymous said...

Those charts are interesting.
I have red and green dis-vision. The circles of color blobs all look similar to me, and I don't see any numbers --
But in the yellow rows of boxes, I clearly see the outlines of each box, and different tones.

Thanks for putting this up --

Paul Worthington

May 5, 2007 at 7:36 PM  
Blogger Tez said...

While I'm not as bitter as the guy who's upset this isn't anything new, his idea about side-by-side Photoshops of the same photograph would be VERY interesting to see.

May 5, 2007 at 10:08 PM  
Blogger Thomas David Baker said...

Why do you say, "It is really important to make color tests to your kids"?

We found out my newphew is colour blind the other day. But it doesn't really affect anything, does it?

May 6, 2007 at 12:41 AM  
Anonymous Anonymous said...

The guy above voiced what I have always thought.

But how can he take a picture and recolor it to show how he sees it?

Mostafa would have to totally reproduce a picture from scratch to try to make it like the image that he is observing.

But it would be great to see this topic fleshed out more.

The roar of the crowd is for more! :)

May 6, 2007 at 7:34 AM  
Blogger Jeff said...

This comment has been removed by the author.

May 6, 2007 at 5:29 PM  
Blogger Jeff said...

Good post, but if you used these images from elsewhere on the web, you should provide a link to those sites or at least add a note where they came from.

May 6, 2007 at 5:30 PM  
Anonymous Anonymous said...

good one!!!ingenious i must say is the person who designed these tests!!!

May 7, 2007 at 2:38 PM  
Blogger wtanksley said...

A minor comment: I've never heard about "infrared eyes" before, don't know if that's true -- but contrary to a later poster, it's true that humans can see infrared. Our eyes are very slightly sensitive to the highest-energy frequencies of IR; so slightly, that normal light overpowers them entirely. But anyone can see it with a filter. I use deep red and deep blue (the sort that emergency flashlights come with); place them both over one eye, close the other, and walk out into sunlight. Once your eyes adjust, you'll see odd patterns and new colorations in many places, mainly in plants.

Be careful about taking the filters off -- your eyes will be adjusted to very low light.

The trick is that the filters are each very efficient at blocking all visible light except red and blue; but they happen to be very inefficient at blocking infrared (since we don't see that anyhow, and since if they did block it they'd heat up much faster). So put together they block visible light well, and let through IR; including the part to which we're minimally sensitive.

I've never heard of color blindness having this effect; but I suppose it's possible. Interesting!

May 7, 2007 at 7:05 PM  
Anonymous Anonymous said...

For those asking for image comparisons. http://www.vischeck.com/vischeck/vischeckImage.php I'm not color blind but my brothers who are say that they can't tell much of a difference between the images this site makes.

-Sam

P.S. Yes it is possible for two brothers from the same mother to be color blind and not color blind.

May 7, 2007 at 8:29 PM  
Blogger KW said...

This is similar to the tests the optometrist did to me when I discovered I was color blind. Cool images, now I can show people what I see when they ask. Cool article.

May 8, 2007 at 4:04 AM  
Anonymous Anonymous said...

This site is great I am going to save this and send it to people I know that always are asking me things like what color does this look like to you or so do you see things like dogs in black and white. I have grown to hate these questions.

May 8, 2007 at 6:49 AM  
Anonymous Anonymous said...

I was experimenting and discovered that if you look at the color test samples with a blue filter (like the one on a pair of 3D glasses), you can see exactly what the article describes:

1) In the first examples, the numbers disappear and the colored circles all look the same.

2) In the second example with the numbered boxes, the "lines" between the left-hand boxes disappear and it turns into a gradient. The right-hand boxes remain visible.

So, if you want to see how something you're designing looks to someone with this form of colorblindness, just use the blue filter.

-- bytesmythe

May 8, 2007 at 2:28 PM  
Anonymous Anonymous said...

I'm a color blind graphic designer too. What surprised ME is that you didn't keep it secret :-)
On the first day at college the art teacher told the class "... and, of course, those who are color blind can't possibly do this job..."
I had always played with the curious ones who wanted to test me, but that day I started hiding the thing. I'm 43 now, I've been cheating (and enjoying it) for 25, with very few accidents. When I retire I'll have more fun telling everyone!

May 18, 2007 at 6:07 PM  
Anonymous Anonymous said...

I admit when I first read that you are colorblind, my first thought was "wow, but your site is so attractive". And then I was promptly ashamed of myself. If a deaf man can be a world famous composer (Beethoven), why not a color-blind design artist? I also recently read a fascinating novel with a colorblind photographer as the main character (The Magician's Tale - I forget the author's name).

Here's a couple fun sites I found doing preliminary research for a colorblind role-playing character:

http://webexhibits.org/causesofcolor/2.html#vissamp

http://colorfilter.wickline.org/

May 24, 2007 at 2:35 AM  
Anonymous Anonymous said...

Sorry you are not colour blind you are red green colour deficient. I am a kid who just recently found out this too. Many people are under the impression that we are colour blind when all it is, is our colour range is different. I think your blog describes this excellently but still idiots don't understand. I have been told that we just view everything differently and that this is quite common. Over 20% of guys have it. Anyway apparently we can sometimes be a better judge of colour combinations and colour schemes.

September 23, 2007 at 11:15 AM  
Blogger as_him said...

Hi! great post u have there! Seeing your work, I am really curious to know - how do you choose color combinations/schemes? How do you know if red will look great in a particular layout?

October 10, 2007 at 11:41 AM  
Anonymous Anonymous said...

i wanted to ask the exact same question: "how do you choose your color combinations?"

...i am a starting graphic designer (i have been doing it for about one year now) and i find it very dificult sometimes...to the point i am considering doing something else (although i dont really want to)

what about when going to a job interview? do you tell the employer of your "dissablity" and risk him not hiring you because he has no clue about it and assumes you cant do the job?
or do you keep it from him and risk facing an embaresing situation later on when he finds out you lied to him? :)

the first time i went to a job interview i didnt mention it to the guy intervieing me and later on i just told the colague i was working with to take a look at what i was doing every once in a while just to be sure.
but it's pretty stressing being very happy wih your work but not being confident of it until someone else takes a look at it to be sure you dont have any colors screwed up

anyway the point is i would like to find a way to go around this so that the next time i can say: "i am color deficient but it is not a problem for me to do this job"

someone said they have "kept it secret" for 25 years.. how did you do that? :D

October 11, 2007 at 11:21 AM  
Anonymous Anonymous said...

Great tale you tell, Mostafa. These last comments to your post about making design choices are interesting.

I've been posting a lot lately about usability and access regarding web design and the importance of designers keeping those with color blind in mind.

I have a list of tools here:
http://colorvision.typepad.com

November 4, 2007 at 11:07 PM  
Anonymous Anonymous said...

I found out just today I'm colour blind. I've been working for a design company for a year now and still hope to go on to great things... I just am not sure whether or not to talk to people about this disability because I don't know whether it is a good thing or not.

Thanks for posting your article. It gives me hope.

November 24, 2007 at 11:37 AM  
Anonymous Anonymous said...

http://tinyurl.com/2y7rwx
This wikipedia picture is supposed to simulate one particular type of color blindness (there are actually quite a few types according to the article here: http://en.wikipedia.org/wiki/Color_blind)

Anyone who's actually color blind care to comment on the image?

November 28, 2007 at 6:56 PM  
Anonymous Anonymous said...

As requested! A link that shows what color blind people see when they look at the real world.

http://www.vischeck.com/examples/

I am a deuteranope. The first two pictures of the globe and hat look totally the same to me. I can see the differences in the third pictures though.

November 28, 2007 at 10:59 PM  
Anonymous Anonymous said...

very interesting article! im doing a project on genetics atm so I'm doing red green colour blindness. nice pics!

April 4, 2008 at 2:27 PM  
Anonymous Anonymous said...

I'm a student taking up Art Direction and I'm really interested in how you select or come up with your color combinations, because I have the red/green color issue as well. I struggle with it, because when I design or illustrate something, my wife will walk in and ask me if I wanted that element to be that color. And usually the answer is no, I wanted it to be something else. Any help would be appreciated.

April 15, 2008 at 12:19 PM  
Anonymous Anonymous said...

I am a color blind individual (red/green but not too severely) and so was my grandfather (severely red/green) what suprised me was that when i looked at the cirlces i didnt see a thing. CREEPY! ive never done those kind of tests.

THANK YOU

April 29, 2008 at 1:05 AM  
Anonymous Anonymous said...

hi i have a type of color blind but dont know what is some thing for color blind test i see nothing but the people that are color blind should see something or sometimes i see thing that color blind people should not see

May 7, 2008 at 12:24 PM  
Anonymous Anonymous said...

Well my brother in law is color blind and guess what - he's working in DTP! The amazing thing is he uses some color mix in gradients when he create posters and other that amaze me. He see colors different but in a good way. I can't explain but is cool :)

November 20, 2008 at 10:23 PM  
Anonymous Anonymous said...

Hello,
my name is emma. i am 13 years old and i am 100% colourblind. imn all of the pictures above i saw no difference in the colouration . I admire the fact that you can express how you see the world. it is very difficult to do that. the one thing i hate about being colourblind is people permanantly ask ''what colour is this?'' and i take a wild guess and if i get it wrong they pick up different objects and keep asking. if i get it right, however, they are like ''oh you are faking being colourblind.'' do you ever get this ? xx

December 21, 2008 at 1:16 PM  
Anonymous Anonymous said...

you make it sound like you are so SPECIAL and DIFFERENT i dont think id really matter some people dont even have the color part when they say color blindness, and you dont see them bloggin about how special they are.

January 24, 2009 at 7:14 AM  
Anonymous Anonymous said...

Thank you, this is a wonderful article to explain color blindness, which is greatly misunderstood.

January 25, 2009 at 4:31 PM  
Blogger Anita Lend said...

Thank you so much! I recently learned that one of my friends is red-green colorblind, and I was very curious about how they see the world. This site helped a lot!

January 26, 2009 at 6:27 AM  
Anonymous Anonymous said...

HELLO I AM NOW DOING MY THESIS AND I AM DOING IT ON COLOR IN GRAPHIC DESIGN. A PART OF IT I AM DEDICATING IT TO HOW COLORBLIND PEOPLE PERCIVE GRAPHICS, IN POSTERS, FLYERS, WEBPAGES ETC... AND HOW IT AFFECTS THE MARKET BY NOT REACHING TO THESE PEOPLE. SOOO PLEASE ALL THE COLOR BLINDS OUT THERE IF YOU CAN GIVE ME YOU OPINON ON THIS, AND SUGGESTIONS AS HOW CAN A GRAPHIC DESIGNER MAKE POSTERS, FLYERS, BROSURES, ETC.. THINKING IN YOU GUYS.
THANK YOU EVER SO MUCH
MY E MAIL IS : antoarroyo@gmail.com

March 25, 2009 at 3:48 PM  
Anonymous TomDimmock said...

This is a very good article. I am colourblind also...and also *apparently* good at graphic design.

I didn't find out till I was 18 that I had this deficiency...and now I am constantly wondering what the "real" colour is.

All I can say is my version of grass is a sensible colour...so you "normal" lot must be mad :P

April 5, 2009 at 12:48 AM  
Anonymous Anonymous said...

I just found out that my 6 yr old has "color vision deficiency" ... we haven't done any other tests to see if he's red'green, blue-yellow or totaly color blind (which I don't think is the case) ... we never noticed anything wrong ... he "learned" his colors ... he colors his pictures normaly!
When his school told me he "might" be color blind ... I told them .. no way ... he knows his colors, ask him ... heheh ... back then I didn't understand what it means to be color blind ... they just see it in a different way ... I mean we never knew my father is color blind ... he's 65!! He lived his life normaly! nobody knew!
Anyways, just wanted to say that you explained this really good! Thanks ... I do ask myself, how does my son see the world ... and sometimes it makes me sad that he can't see it the way we do ... but then I say to myself - he doesn't know any different! To him it's normal!

April 17, 2009 at 8:15 PM  
Anonymous Luke said...

There is no doubt that color blindness handicaps a graphic designer; however, you can manage... so don't feel like you should give up.

Collect Benchmarks. As a graphic designer you should already be doing this, but by collecting benchmarks you see what works. You can compare your values of colors to these benchmarks.

April 23, 2009 at 7:02 AM  
Anonymous Anonymous said...

I am a color blind graphic designer as well...when i'm doing a layout ant use a color it looks good to me but i am not sure if it is green of yelloe, if it is red or maroon etc...does anybody know a software where i can use the color picker and it will tell me if the color is green or yellow.

May 1, 2009 at 12:13 PM  
Anonymous Anonymous said...

I too am red-green colorblind, and am currently majoring in Graphic Design.

I can see the boxes in the 0-19 thing though. I wonder why.

June 16, 2009 at 3:37 AM  
Anonymous Rosanne said...

Great article you have done a great job on showing "what it is like to be colour blind" Did you all known that you can get corrective optical lenses for red-green colourblindness? My name is Rosanne and thats my job, every day I show colour deficient people a wonderful world of new Colours.It maybe for their job or to enjoy a beautiful sunset. feel free to contact me for more info www.colourblindness.com.au

June 23, 2009 at 4:16 AM  
Anonymous Anonymous said...

My brother is colour blind and i was just looking at what he sees he has the red-green one
anyway we havn't told him but someone commented about there nephew being colour blind and asked if it affected there life well sad to say but it does. if they want to fly planes, be a policeman or ambulence driver it won't be allowed because of the diabilit but i will say htis you have done an amazing job on this website with the colours! despite your disability

July 26, 2009 at 8:10 AM  
Anonymous Anonymous said...

in some countries (such as Thailand) you can't even get a driving license when you're colorblind without bribing anyone.

July 30, 2009 at 6:36 AM  
Anonymous Anonymous said...

I was surprised that you found it up after 27 years :)

i think knowing how everyone sees is important to designers , for sure we're doing disaster when not keeping this in mind.Would you imagine that some text or important details couldn't be recognized!!!just because we are using wrong colors together

October 18, 2009 at 4:25 AM  
Blogger Mostafa Omar said...

Interesting information , this would prove why design is a talent at the end :)

but how color-blinders see our flag "Egypt Flag" its based on red color or what about if someone is bleeding ?

April 27, 2010 at 9:52 AM  
Anonymous J said...

Hi Mate. You see exactly the same as me, all your descriptions I agree with, I cant see alot of it and can see others. Quite funny in a way but also quite frustrating. When working with electronics I have to ask my wife the colour of the bands on resistors etc, as I just cant determine some of the colours.

May 17, 2010 at 12:10 PM  

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