I do not quit understand the colors of SG yet. Because it seems to be not the same as regular RGB or CMYK charts. Mixing Red and Green on Black should give Yellow, but that is actuallly not the case....This strip is a reply to Tutorial: Variations on a 4 Colour Pallette, Tutorial: Purple & Green using Opacity & Inversion, SG for DUMMIES Contest!
The ring is made by going from 20/40/60/80% yellow on 100% red etc.
20% yellow on 100% red is the same as 20% red on 100% yellow.
Edit: Thanks to Ambro I now understand a bit more. The following is the case:
What you see in the chart are the 'primary colors' of SG. This is not a regular RGB 8-bit colorsystem. Only the Red, black and White in SG are pure.
R = 255,0,0
G should be 0,255,0 this is not the case = not pure
B should be 0,0,255 this is not the case = not pure
K = 0,0,0
W = 255,255,255
Note: There is a big difference between colormixing with light (additive) or mixing with pigments on paper (subtractive).
- With light the primary colors are:
Red, Green and Blue (RGB)
- With pigments the primary colors are:
Red, Yellow and Blue or better Cyan, Magenta, Yellow and blacK (CMYK) (think of printerink).
- With light mixing:
Red and Green gives Yellow
Green and Blue gives Cyan
Blue and Red gives Magenta
Note that in SG this does not work this way. SG has no regular 8-bit colorsystem.