Can you direct me to resources on the internet that provide information about support for 12 Bit color depth?

I am curious to know when the w3specs will support colors in 12 bits instead of the current 8-bit format used for webcolors like sRGB (#FFFFFF or rgba(255,0,0,100).

I wonder if there will ever be a new standard called 12-Bit sRGB where colors can be defined differently such as X#FFF FFF FFF instead of #FF FF FF and Xrgba(255*16,0,0,100) instead of rgba(255,0,0,100).

Supporting only 10 bits (as required by upcoming displays) seems challenging due to the limitation of the 8+2 bit format. For example, the color white would be represented as #8FF which is not aesthetically pleasing.

I have tried looking for this information in a w3Spec but haven't had any luck so far. Can anyone provide me with a link to the appropriate w3Spec or Working Group?

Why do I need this?

  • I want to enhance the canvas element to support 10/12-bit colors for various web applications like photo editing and 3D games. It would also be beneficial for websites to use 12-bit colors in PNG files or achieve seamless color transitions.
csscolorsphotocolor-depthsrgb

Answer №1

After consulting the w3specs and the css mailing list, it has been confirmed that 10 Bit colors can already be utilized. For instance, you can achieve this by inputting:

rgb(0.1%,0.1%,0.1%) The browser will then make the decision whether to round down to 0%

In the upcoming CSS Color Level 4, rgb() and rgba() will be expanded to accept a <number> instead of just an <integer>. This means you can now write:

rgb(0.25, 0.25, 0.25), and it may or may not be rounded to rgb(0, 0, 0)

-- Simon Sapin, shared on CSS-color Mailing List

To delve deeper into this topic, refer to CSS-Color Level 4 - Editor’s Draft dated October 7, 2013

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