Step 1: Put the color into words before you touch a bottle
Before mixing anything, pin down what kind of color you're looking at. If you skip this, nothing you add will feel right.
- Hue — is it red, blue, yellow, green? Go one level deeper: a purple-leaning red, or an orange-leaning red?
- Value — is it light or dark?
- Saturation — is it vivid, or dusty and muted?
When you can say "a light, muted blue-green" out loud, the mix becomes far easier to plan.
Step 2: Start from the closest paint you already own
Mixing from scratch with three or four paints is slow and unpredictable. Instead, line up your collection and pick the single closest bottle as your base.
- The closer the base, the fewer adjustments you need — and fewer adjustments means less mud.
- No single paint close enough? A 50/50 of two nearby colors often lands you a solid starting point.
Step 3: Adjust one thing at a time — value, then hue, then saturation
Compare your base to the target and close the gaps one axis at a time. Going value → hue → saturation saves the most repainting.
- Value: to lighten, prefer a lighter paint of the same family over pure white — too much white washes the color out. To darken, add a darker same-family color in small drops.
- Hue: nudge a too-warm or too-cool color with a tiny amount of a neighboring color. Strong pigments move the mix a long way with a single drop.
- Saturation: to mute a color, add a trace of its complement or a neutral gray — and stop slightly before it looks right, because it keeps drifting as it dries.
Why mixes turn muddy (and how to avoid it)
Paint mixing is subtractive: every extra color you add makes the result darker and duller. The three classic causes of mud:
- Too many paints in one mix. Two or three is usually plenty. If you're on your fifth, restart from a better base.
- Darkening with black. Black flattens most colors. A dark brown, dark blue, or the color's complement usually darkens more naturally.
- Correcting in the wrong direction. Add the strong pigment to the weak one — a drop of red moves white a long way, while white barely moves red. Pouring white into red just eats your paint.
Step 4: Match the warm/cool lean
Two grays, two whites, two greens can read completely differently depending on whether they lean slightly warm or slightly cool. If the reference feels cold, add the tiniest touch of blue; if it feels warm, a touch of yellow or red. This subtle lean is what makes a match suddenly look "right".
Step 5: Test, let it dry, then record the ratio
Wet paint lies. It reads darker while wet, and matte vs gloss shifts the impression again. Test on scrap, judge only after it fully dries, in the same light you'll display or photograph the model in.
And when a mix works: write the ratio down — even a rough "base : white : a touch of blue" note. A perfect color you can't reproduce for the other shoulder pad is worth nothing.
Summary
- Describe the target in hue / value / saturation before mixing.
- Start from the closest paint you own, not from scratch.
- Adjust one axis at a time, in small drops. Fewer paints = cleaner color.
- Match the warm/cool lean — it carries the "likeness".
- Judge after drying, and always record your ratios.