Color Blend Tool

The color blend tool merges two colors at a ratio you control, previewing the blend at twenty-five, fifty and seventy-five percent so you can pick the exact midpoint you need.

What is Color Blend Tool?

The color blend tool mixes two colors in a proportion you set with a single slider. Choose a color for each end, move the mix control to weight the blend toward either side, and the tool reports the resulting color and shows it as a large swatch. Beneath it, a strip previews the same pairing at twenty-five, fifty and seventy-five percent, so you can see how the transition behaves across the range rather than only at the point you happen to have selected.

• The arithmetic is a straight per-channel interpolation.
• Each of the red, green and blue channels is computed by taking the difference between the two source values, scaling it by the mix fraction and adding it to the first color.
• At zero percent you get the first color exactly, at one hundred percent the second, and at fifty percent the value that sits precisely between them in RGB.
• This is the same linear interpolation that underpins gradients and state transitions, which is why the result of a fifty percent blend often looks like the natural halfway point of a gradient between the two colours.

• Blending in RGB is not the same as blending in paint, and that distinction catches people out.
• Because RGB is a light model, a fifty-fifty blend of blue and yellow produces a desaturated grey rather than the green you would get from pigments.
• If your question is about ink, pigment or paint, the subtractive mixer in this section is the right tool; this blend tool models what happens when two light values are combined proportionally, which is what a screen does.
• Knowing which model you need is the single most important choice before you start.

The preview strip is the feature that makes the tool more than a calculator. State design and gradient work both rely on knowing how a colour behaves as it approaches another, and three evenly spaced samples reveal whether the transition is smooth or whether it passes through a muddy region in the middle. A blend between a saturated red and a saturated green, for example, dips through a dull brownish midpoint, and seeing that on the strip tells you to route the gradient through a third colour instead. That is a judgement you cannot make from the endpoints alone.

Use the tool whenever you need a defensible intermediate colour rather than an eyeballed one. Whether you are deriving a disabled state from an active colour, finding the midpoint of a two-stop gradient, or building a hover transition, a ratio-controlled blend gives you a value that is provably between the two inputs, which is easier to document and to reproduce than a hand-picked hex. The result is copy-ready, and the neighbouring swatches give you the surrounding steps if you need a short scale.

At its simplest it is a color blending calculator for the everyday job of mixing a second colour into a first without opening a design application. Whether you need to blend two colors into a single state value or mix two colors with a ratio a design token can credit, the readout gives you the exact result and the surrounding steps.

How to use Color Blend Tool

1. Set Color A and Color B.
2. Drag the Mix slider to the proportion you want, from zero to one hundred percent.
3. Read the result swatch and copy its hex.
4. Check the blend against the two parents when one of them must still be recognisable in the result.

When to use Color Blend Tool vs related tools

Use this tool when you need a precise intermediate colour between two known values. Use the subtractive mixer for pigment and ink blends, and the three-or-more-colour mixer when you want to combine a whole palette rather than a single pair. The color mixer shows the same blend at twenty-five, fifty and seventy-five percent in one view, and the palette mixer runs the operation across a whole list by adjacent pairs.

Privacy & Security

This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.

Frequently asked questions about Color Blend Tool