Generating a rainbow?

Giacomo Boffi giacomo.boffi at
Tue Apr 13 09:51:12 EDT 2010

Tobiah <toby at> writes:

> I'm having a difficult time with this.  I want
> to display a continuous range of hues using HTML
> hex representation (#RRGGBB).  How would I go 
> about scanning through the hues in order to
> make a rainbow?

if you mean real rainbows when you say "rainbow", as rainbows go from
low to high wavelengths and you have to specify colors to your display
in RGB, i think that you have to read, e.g.,

otoh if you mean simply a continuos palette with varying hues,
excellent answers were already posted

compro mobili vecchi - vendo mobili antichi

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