Color::Scheme produces sets of complimentary colors, in groups of 4 to 16. Not quite what I need.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^2: A hierarchy of color (intensity)? by BrowserUk
in thread A hierarchy of color (intensity)? by BrowserUk

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