Shadows and highlights are what turn a flat circle into a ball you could pick up. Most of us reach for black and white first. It works, but it can leave the color muddy and dull. Saena from Saena Fine Art paints the same red sphere four different ways to show how color theory gives you livelier shadows and highlights. Every ball starts with the same pyrrole red base, so the only thing that changes is the colors you shade with.
How to paint shadows and highlights in acrylics: four color schemes
- Black and white. Simple and safe, but greyish.
- Complementary. Darken with the color opposite on the wheel.
- Warm or cool. Shade with oranges and light with yellows, or the reverse with blues and purples.
- Analogous. Use the neighbours on the color wheel.
Why black makes shadows look dead
Black does more than darken. It dulls the color and can shift it, so a red shadow made with black can go brown or even a little green. White cools and chalks a color as it lightens it. Real shadows are rarely grey. They pick up color from the sky, the table and the objects nearby. Mixing your darks and lights from other colors keeps the painting rich.
Find the light source first
Before you mix anything, decide where the light comes from. Saena lights every sphere from the upper left. The highlight sits on that side. The core shadow wraps around the opposite, lower right edge. Keep the same light direction across a whole painting, or the objects will look pasted in.
Complementary pairs to remember
| Base color | Mix in for shadow |
|---|
| Red | Green |
| Blue | Orange |
| Yellow | Purple |
Add the complement a little at a time. A touch darkens and softens. Too much turns the mix to mud.
Warm versus cool lighting
Warm shadows and highlights feel sunny and full of energy. Cool ones feel calm, quiet or wintry. You can also mix them on purpose: warm light with cool shadows is the classic look of a sunny afternoon. Pick a scheme that fits the mood you want before you start.
Practice ideas
Paint a row of the same colored circles on scrap cards, like Saena did, and shade each one a different way. Pin them up as a reference chart. Then try the same idea on an apple, an orange or a cup. It is a cheap, low pressure way to learn what each mix does.
Common problems
- Muddy shadow. Too much complement. Add more of the base color back.
- Harsh edge between light and dark. Mix a middle value and blend it over the line.
- Highlight disappears. Acrylic dries darker. Go a little lighter than you think.
Keep learning
Pair this with mixing acrylic paint colors and blending acrylic paint. For deeper shadows, layer thin glazes. The same light and shadow ideas apply in pencil too: see how to shade.
