https://bugs.documentfoundation.org/show_bug.cgi?id=114719
--- Comment #12 from V Stuart Foote <[email protected]> ---
(In reply to V Stuart Foote from comment #11)
>
> https://bahamas10.github.io/ryb/
>
> at -180, -130, -80, -30, 0, +30, +80, +130, +180
>
To use this for generating an RYB based palette as for our standard.soc:
--need to rotate to wheel to Yellow, so 105°.
--take the default 12 divisions (generating Primaries, Secondaries,
Tertiaries).
--then reduce the ring count to 1.
--finally set the brightness as needed for the SOC palette variant.
The resulting wheel represents values for one row of our RYB palette.
Save/download as SVG format. Then extract the fill="#HEX" for each of the 12
color values--they are positional in the downloaded SVG--keep them in the
correct order when building the SOC palette draw:color stanzas for each row.
Change the brightness for each new row of values in the palette. Generate,
download and extract the color in RGB #HEX from the SVG--repeat.
I probably should have used -200, -150, -50, 0, 50, 100, 150, 200
brightness--beyond that the colors are seem dark or too light. But I think
this is a technically correct (and reproducible) way to generate the RYB based
color palette that standard.soc now represents. It eliminates some of the
arbitrary color choices that had made their way into the palette.
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