conic spectrum 3
by Lazur - uploaded on October 23, 2015, 6:48 pm
Now the "background" overlaps the gradient so the edge won't look aliased in browsers. For that matter only an edge at 45° would produce a rendering issue, still it's the finest form of this concept at the moment I know of for displaying in browsers.
This clipart is a remix from:
gradient corrected
by @Lazur
conic spectrum 2
by @Lazur
conic gradient 2
by @Lazur
conic spectrum
by @Lazur
conic gradient
by @Lazur
spectrum of colours 2
by @Lazur