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mcherm : color   67

The Myths of Color Contrast Accessibility
Web accessibility for the colorblind isn't nearly as difficult as most people say.
via:HackerNews  webdesign  color  colorblind  accessibility 
october 2019 by mcherm
Designing accessible color systems
Stripe built some tools and worked in special color spaces to create distinct colors that also were high contrast.
color  vision  stripe  webdesign  accessibility 
october 2019 by mcherm
Re-approaching Color – Lyft Design
The folks at Lyft came up with a set of color names.
color  via:HackerNews 
may 2019 by mcherm
paint is colored glue | daily eclectic excerpts by editor Richard Vague
Nice explanation of how oil paint uses polymerization to form a layer (or multiple overlapping layers) of hard plastic.
materialsscience  via:HackerNews  color 
april 2019 by mcherm
ColorBrewer: Color Advice for Maps
A tool for selecting color schemes for identifying data.
color  useful  mapping  via:HackerNews 
august 2018 by mcherm
Impossible Colors and How to See Them
Several ways to experience colors that the eye cannot normally experience.
via:SlateStarCodex  color  vision 
july 2018 by mcherm
Why You Shouldn't Use Bright, Saturated Colors for Backgrounds
Desaturate (add grey to) colors that you intend to use in the background.
color  webdesign 
may 2018 by mcherm
Mas Subramanian's Quest for a Billion-Dollar Red
He invented a new blue, and he's trying to invent a new red. Apparently that's a big deal.
color  science  materialsscience  invention  chemistry  via:HackerNews 
april 2018 by mcherm
handprint : color vision
Another source on color. Has information like the population of the three kinds of cones and how that interacts with the fact that the eye of the lens focuses different colors at different distances.
color  via:HackerNews 
april 2018 by mcherm
Color: From Hexcodes to Eyeballs
A really good explanation of several (but far from all) color spaces, starting from pure wavelengths and the sensitivity functions for each kind of cone.
color  via:HackerNews 
april 2018 by mcherm
The red and green specialists: why human colour vision is so odd | Aeon
In humans, red cone sensitivity and green cone sensitivity overlap to a huge degree (cameras and bumblebees have evenly spaced color detectors). Perhaps this was an adaption to pick out colored fruit against leaves or to detect faint blushes on the skin of fellow primates.
color  vision  via:HackerNews 
february 2018 by mcherm
How to Generate Random Colors Programmatically
Generating an infinite series of visually distinct colors, like for labeling series on a graph or something.
color  programming  webdevelopment  via:StackOverflow 
january 2018 by mcherm
How to select a color palette
Some pretty useful notes on selecting a color palette including information about tools to assess how things look for someone who is colorblind.
colorblind  color  webdesign  via:reddit 
july 2017 by mcherm
Beware of Transparent Pixels - Adrian Courrèges
When drawn half a pixel over, the color of the 100% transparent pixels in your image can bleed through. How to fix it.
images  transparency  gamedev  gameprogramming  via:HackerNews  color 
may 2017 by mcherm
Why do infrared emitters look purple on a digital camera?
Some notes on how color detection works on a digital camera.
color  via:reddit 
november 2016 by mcherm
Scientists have found a woman whose eyes have a whole new type of colour receptor - ScienceAlert
The female children of some colorblind men have 4 kinds of cones, and at least one such person can actually perceive 4 dimensions of color.
color  colorblind  vision  biology  via:HackerNews 
august 2016 by mcherm
What Little Babies See That You No Longer Can - Scientific American Blog Network
Adults (and kids) lose the ability to discern absolute intensity and color, in favor of relative intensity.
vision  opticalillusion  color  via:HackerNews 
february 2016 by mcherm
Magic PNG Thumbnails - Tristan Hume
Pictures that render differently depending on whether gamma correction is working.
via:HackerNews  images  color  graphics 
september 2015 by mcherm
Green Honey
Color names in English and Chinese.
color  language 
november 2014 by mcherm
Basic colour theory for programmers | Hacker News
The linked article is interesting, but the comments here had significant new pieces of information.
color  via:HackerNews 
november 2014 by mcherm
A handful guide about colors.
Some advice on the use of color in design.
webdesign  color  via:reddit 
may 2014 by mcherm
Why Facebook Is Blue: The Science of Colors in Marketing - The Buffer Blog
What emotions are associated with each primary color, and other stuff.
color  webdesign 
march 2014 by mcherm
Nelson's Weblog: tech / angry-rainbow-palette
When using a color spectrum in data visualization, don't use 100% saturation.
datavisualization  color  via:NelsonMinar 
february 2014 by mcherm
The blue and the green spirals
An optical illusion of color perception that is extremely striking.
color  opticalillusion  via:slate  slate 
october 2013 by mcherm
Design Tip: Never Use Black by Ian Storm Taylor
Don't use #000000, instead use very dark tones with color in them. Because the real world doesn't have "pure" blacks.
color  design  via:HackerNews  personal_net  webdesign 
october 2013 by mcherm
The crayola-fication of the world: How we gave colors names, and it messed with our brains (part I) | Empirical Zeal
Differentiation of colors occurs in a common pattern across 80% of cultures. In Japan the green/blue distinction occurred within living memory.
color  language  vision  science  brain  via:reddit 
december 2012 by mcherm
xkcd: Visual Field
A little more about the eye like distribution of different kinds of rods and cones.
color  vision 
july 2012 by mcherm
Color Wheels are wrong? How color vision actually works by @ASmartBear
Post-cone filters on vision and why the color wheel should have 4 components.
color  vision  via:JasonCohen 
june 2012 by mcherm
Optical Illusions
Optical illusions. But there may be a trick involved.
color  opticalillusion  via:boingboing  funny 
january 2012 by mcherm
The Day I Saw Van Gogh's Genius in a New Light
Van Gogh was probably colorblind and his paintings look very different when viewed with corrections for that.
color  vision  colorblind  via:HackerNews 
december 2011 by mcherm
Color Wheels
A very high-level but VERY clear and helpful summary of some of the odd things about color perception. Gives a reasonable argument for a perceptual color wheel consisting of 4 primary colors (Red , Yellow, Blue, Green).
color  vision  via:JasonCohen 
february 2011 by mcherm
Color Survey Results « xkcd
XKCD did a survey about color names. COOL! Also lots of interesting links.
color  xkcd  vision 
may 2010 by mcherm
Secrets of the Nexus One's screen: science, color, and hacks
Detailed review of why the screen on the Nexus One isn't as good as it is advertised. The difference has to do with size and placement of the color pixels. Interestingly, one result is a way to get a black-and-white image to appear in color.
ArsTechnica  via:ArsTechnica  color  android  nexusone  hardware 
march 2010 by mcherm
Web Blog / Be Kind to the Color Blind by COLOURlovers :: COLOURlovers
Advice with specific examples on making your web site more usable by those who are colorblind.
color  colorblind  webdesign  via:reddit 
march 2010 by mcherm
Gamma error in picture scaling
The scale of luminosity is not linear, it is logarithmic. Nearly all image scaling algorithms fail to take this into account.
color  light  images  graphics  interpolation  algorithms  via:reddit 
february 2010 by mcherm
Haidinger's brush: the unknown sense
Yes, you can see polarized light! With the naked eye!
color  vision  via:reddit  biology  physics  science  light  optics 
february 2010 by mcherm
Ned Batchelder: AllRGB
Creating an image file that contains every RGB color.
via:NedBatchelder  color 
february 2010 by mcherm
Color + Design Blog / Color Identifying System For The Color Blind by COLOURlovers
I doubt this is a useful idea: colors are so often used when icons are already present or cannot be used. But in the rare cases where an icon for indicating colors might be useful, this system is probably OK.
via:reddit  color  colorblind 
january 2010 by mcherm
Why Should Engineers and Scientists Be Worried About Color?
How the choice of color maps used in presenting information can significantly influence how they are perceived. We should design the color maps keeping in mind the human perceptual system.
color  vision  visualisation 
august 2009 by mcherm
ColorPic, The Desktop ColorPicker Software
A free windows tool which magnifies and allows you to pick colors off of the screen.
useful  windows  color  webdevelopment  free 
march 2009 by mcherm
Magenta Ain't A Colour
An example of someone who really DOESN'T understand color, or who simply chooses to explain it poorly. There is a difference between frequencies of light and colors perceived by a viewer. The spectrum shows all single-frequency lights. A given beam of light can be any combination of these -- that's an infinite-dimensioned value. Humans have 3 kinds of color receptors (maybe 4 or 5 depending on just how you count, but basically 3), and we perceive ratios of the detections from these 3, so our vision is 3 dimensional. Magenta IS there.
color  vision  via:boingboing  science 
february 2009 by mcherm
True-Color GIF Example
It's not well-known, but the GIF format CAN support more than 256 colors -- it just creates enormous file sizes.
via:reddit  color  images  GIF 
september 2008 by mcherm
FM 100 Hue Test
An interesting test: sort these items by hue and test your color vision. I scored a 16, Rachel scored a 74.
color  vision 
september 2008 by mcherm
The Laboratorium: Is Google Making Us Insipid?
The comments on the color choice make an interesting puzzle.
personal_net  color 
june 2008 by mcherm
The Amazing Color Label Wheel!
Mechanical turk used to get thousands of color names. Then a map was produced of color names.
via:boingboing  vision  color  words 
march 2008 by mcherm
This company has an algorithm for modifying color pictures to convey the maximum amount of information to people with specific types of colorblindness.
colorblind  vision  color  algorithm 
december 2007 by mcherm
Cognitive Daily: Why does seeing red make test-takers choke?
Astonishingly, this research claims to demonstrate that seeing red before a test causes statistically significant degradation in the test scores. Frankly, it's so counter to my own experiences that I'm not sure I even believe it.
science  teaching  color 
november 2007 by mcherm
Coding Horror: Not All LCD Panels Are Created Equal
Great info on LCD panels -- read the comments too!
hardware  LCD  computers  color 
november 2007 by mcherm
A site for defining colors and color palates. Not exactly my strength, but I played with it.
color  mypostings  useful 
october 2007 by mcherm
Cognitive Daily: Do women perceive color differently from men?
Interesting entry on color vision and the changes in vision due to having 4 rather than 3 or 2 pigments.
color  science  vision  colorblind  blogentry 
july 2007 by mcherm
Fact Check Forum - What does Gendale look like?
How to see an imaginary color. By the way, the content of this site is NOT reliable: it's fiction!
color  personal_net 
june 2007 by mcherm
Color Tools: Ned Batchelder: December 2006
Blog entry with a list of different color choosing applications.
personal_net  color 
december 2006 by mcherm
Color Scheme Generator with Color Blindness Filters
A tool for picking a set of colors for use in a website. Special extra feature: shows you what it looks like to both normal vision AND to several different kinds of colorblindness!
colorblind  useful  webdesign  color 
december 2006 by mcherm
Test for Colorblindness On-line
A test for younger kids that can't identify numbers. Buy for $99 or try online.
colorblind  color 
may 2006 by mcherm

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