How to Mix Colors

Problem

You need to blend two colors to create an intermediate color, such as for a hover state or transition.

Prerequisites

• Understanding of color models
• Knowledge of blending modes

Steps

1. 1. Choose the color space for mixing

   Mixing in RGB averages each channel independently, which can produce muddy midpoints. Mixing in HSL preserves hue and saturation better. Mixing in OKLCH (a perceptual space) produces the most natural-looking gradients. Choose based on the desired visual result.

   Input

   mix in OKLCH

   Output

   perceptually uniform

2. 2. Set the mix ratio

   Specify how much of each color to use: 50/50 for an even blend, 70/30 for a bias toward the first color. The ratio determines the position of the result between the two colors. Some mixers support multiple colors with weighted ratios.

   Input

   red + blue, 50/50

   Output

   purple

3. 3. Compute and output the result

   Convert both colors to the chosen color space, interpolate at the specified ratio, and convert back to the output format (HEX, RGB, HSL). Verify the result visually. For CSS, use the color-mix() function: color-mix(in oklch, red, blue).

   Input

   color-mix(in oklch, #FF0000 50%, #0000FF)

   Output

   #800080 (approx)

Expected result

A blended color that represents the specified mix of the input colors.

Common errors

Muddy midpoint in RGB mixing

RGB mixing can produce grayish midpoints for complementary colors. Mix in HSL or OKLCH for more vibrant results.

Hue wraps incorrectly

When mixing in HSL, hue is circular (0° and 360° are the same). Interpolate along the shorter arc to avoid going the long way around.

Troubleshooting

• If the mixed color looks wrong, try a different color space.
• CSS color-mix() is modern; check browser support or precompute the value.

Security limits

• Color mixing is a pure calculation with no security implications.