Mixing Red and Green
If you mix red paint and green paint, you get brown because they are complimentary colors in that color mode. In Photoshop, you get mostly green, with some browns toward the red side. In the middle area is an olive green.
Mixing Blue and Green
Here we get a predictable teal color when mixing pure blue and pure green.
Mixing Red and Yellow
Here we get a beautiful orange from pure red and yellow.
Mixing Blue and Yellow
When mixing blue paint with yellow paint, you usually get some version of green. In Photoshop, these two colors are opposite to each other on the RGB color wheel. What you get when you mix these two is pretty muddy. Somewhere to the yellow side there are some dull greens. What you get right in the middle is gray.
Mixing White and Red
A nice pink results from pure white and pure red. Hues mixed with white are called tints. You will get similar lightening results from mixing other colors with white.
Mixing Black and Red
Richer, darker red tones result from pure black and pure red. Hues mixed with black are called shades. You will get similar darkening results from mixing other colors with black.
Mixing Three Colors
You can get some interesting mixtures, similar to mixing paint, when you mix three or more colors.
Here I’ve mixed pure black, pure red, and pure blue. In the middle of the mix is a dark violet.
Here I’ve tried pure white, a light blue with a hint of gray, and a muted green.
Finally, I mixed yellow with a raw sienna color and a spring green.
Smudge that “Paint” Around
After you’ve mixed some colors, get the Smudge tool at 50% strength. Use a large brush size, and you can achieve some lovely painterly effects.
If you have any questions or feedback, I’d love to hear from you in the comments below. What cool color mixtures did you come up with?