It seems like Color::Scheme may be of some use here. The effect you want can be realized by varying the hue value in a hue-saturation-brightness color model -- the H in HSB. The only problem is to find an HSB implementation which meets the 1000-discrete-values criteria.

--
Marvin Humphrey
Rectangular Research ― http://www.rectangular.com

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

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