RGB light color spectrum in a circle shape on white background. It’s not a pro version with all types of shades, works better like a pick color icon, for websites.
As always, it is available in a very detailed jpg file, and 1280x1024px large preview.
Created with photoshop, angle gradient with whole color spectrum is used.

Resolution: 5000×4000 px
Large previews – 1280x1024px
Light color spectrum
Size: 737 KB
Format: JPG
Color theme: rainbow colors, red, blue, green, yellow, pink etc.
Keywords: color spectrum icon, RGB color background, RGB spectrum, color wheel
Author: PSD Graphics

Download hi-res JPG files:

Color spectrum