Jianrui Lyu submitted the
ninecolors
package.
Version: 2021A 2021-04-11 License: lppl1.3
Summary description: Select colors with proper WCAG color contrast
Announcement text: ----------------------------------------------------------------------
The ninecolors package carefully selects and defines 9 colors for 13 hues each. All colors with the same suffix number have equal luminance level. Also color black is of level 0, and color white is of level 10.
By simply choosing two colors in the above list, which differ in level by at least 5, as foreground and background colors, you will get proper WCAG Color Contrast.
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The package’s Catalogue entry can be viewed at https://ctan.org/pkg/ninecolors
The package’s files themselves can be inspected at http://mirror.ctan.org/macros/latex/contrib/ninecolors/
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Thanks for the upload.
For the CTAN Team Petra Rübe-Pugliese
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