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A visualization of the RGB space covered by named colors

codepen.io

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Re: A visualization of the RGB space covered by named colors

#41

Post by madcaptenor »

arichard123 wrote: post #25

Xkcd Colour names based on a survey: https://blog.xkcd.com/2010/05/03/color-survey-results/

My favorite bit of this survey (scroll down to "Miscellaneous") is that one of the color names in the raw data set is "unsure-whether-boy-or-girl baby room color". My daughter's room is this color - we painted before she was born. They told us we were going to have a boy but they misread the ultrasound.

Re: A visualization of the RGB space covered by named colors

#43

Post by badmonkey0001 »

AceJohnny2 wrote: post #42

Why is #00FFFF called "Aqua" and not "Cyan"? I guess there exist multiple names for the same colors, per https://www.w3schools.com/cssref/css_colors.php , and for some reason "Aqua" takes precendence in this display.

Could be just plain alphabetical. There's a selector for which color name list to use/examine on the bottom of the visualization. There's also a selector for which color space model to use.

Re: A visualization of the RGB space covered by named colors

#45

Post by mceachen »

Tempest1981 wrote: post #36
dougb5 wrote: post #31

Great project! It's visually dazzling and it really drives home the sheer size of the universe(s) of named colors. I've long been interested in the names of colors and their associations. If I may plug my own site a bit, check out the "color thesaurus" feature on OneLook that organizes color names more linearly. Start with mauve, as an example: https://onelook.com/?w=mauve&colors=1 (It also lets you see the words evo…

And how far things have come since the X11 color names

X11 color names are atrociously bad. Inconsistent prefixes and suffixes, flatly wrong names for many handfuls of RGB triplets, and it’s what got hard wired into CSS and HTML.

Re: A visualization of the RGB space covered by named colors

#48

Post by virtualritz »

RGB is a color model[1], not a color space[2].

Note that the headline gets this wrong but the page linked to gets this right.

sRGB or Rec2020 or ACEScg etc. are color spaces with known primaries and a known whitepoint. This is not nit-picky. Almost everyone doing CGI for the first time w/o reading up on some theory beforehand gets this wrong (because of gamma and then premultiplication, usually in that order).

Then there are color models which are also color spaces. CIE XYZ is an example.

[1] https://en.wikipedia.org/wiki/Color_model

[2] https://en.wikipedia.org/wiki/Color_space

Re: A visualization of the RGB space covered by named colors

#49

Post by dinkelberg »

kouru225 wrote: post #39

Very clearly shows much more sensitive our eyes are to luminance rather than hue or saturation, which was the main observation that allowed for the high compression rate of JPEG

Are you speaking of chroma subsampling, or is there a property of the discrete cosine transform that makes it more effective on luma rather than chroma?

Re: A visualization of the RGB space covered by named colors

#50

Post by ricardobeat »

dinkelberg wrote: post #49
kouru225 wrote: post #39

Very clearly shows much more sensitive our eyes are to luminance rather than hue or saturation, which was the main observation that allowed for the high compression rate of JPEG

Are you speaking of chroma subsampling, or is there a property of the discrete cosine transform that makes it more effective on luma rather than chroma?

Probably chroma subsampling - storing color at lower resolution than luminance to take advantage of the aforementioned sensitivity difference. Since it’s stored at 1/4 resolution it can alone almost halve the file size.

Saying it’s the insight that led to JPEG seems wrong though, as DCT + quantization was (don’t quote me on this) the main technical breakthrough?

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