Color Mixer
Mix two colors together and see the result.
Click any swatch to copy its hex code.
Mix two colors together and see the result.
This free Color Mixer from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Color Mixer
- Pick or paste your base color (HEX, RGB or HSL).
- Run the conversion or palette generation.
- Preview the result on light and dark backgrounds.
- Copy the values into your design tokens or CSS.
What you can do with the Color Mixer
- Build accessible palettes that pass WCAG contrast.
- Convert between color models for design vs code.
- Find harmonious palettes from a brand color.
- Audit existing screens for contrast issues.
Why use KX Toolkit's Color Mixer
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
Always check text contrast at the actual font weight - large bold text only needs 3:1, while small body copy needs 4.5:1.
Related Color Tools
If you find this tool useful, explore the full Color Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
How does a color mixer calculate the resulting color from two inputs?
A color mixer averages the red, green, and blue channels of the two inputs, sometimes weighted by a ratio you control. For example, mixing pure red and pure blue at 50/50 produces a purple by averaging their RGB values. Advanced mixers work in perceptual color spaces like LAB or LCH to produce more natural-looking blends, since simple RGB averaging can sometimes pass through gray or muddy midpoints that look unappealing.
Why does mixing complementary colors produce gray or brown?
Complementary colors sit opposite each other on the color wheel, so their RGB channels cancel out when averaged, producing a neutral gray or muddy brown. This is mathematically expected because the channels offset each other. If you want a more vibrant midpoint, mix colors that are closer on the wheel, such as analogous hues, or use a perceptual color space like LCH that preserves chroma during interpolation.
Is color mixing on a screen the same as mixing paint?
No, screens use additive RGB mixing where combining all colors produces white, while paint uses subtractive CMY mixing where combining colors approaches black. That is why red and green light make yellow on a screen but red and green paint make a muddy brown. The Color Mixer tool simulates digital RGB mixing, which is the relevant model for web, app, and screen-based design work.
When is color mixing useful in real design work?
Color mixing helps designers find intermediate brand colors, build smooth gradients, blend overlay tints, and create accent colors that feel related to two existing brand colors. It is also useful for generating midpoint stops in a palette, picking transitional hover states, or finding a neutral that bridges a warm and cool color in your system without introducing a clashing third hue.
Can I control the ratio of mixing between two colors?
Yes, most mixers include a ratio slider so you can shift the result toward one color or the other. A 50/50 mix gives the perfect midpoint, while 80/20 produces a result much closer to the dominant color with just a hint of the second. Adjusting the ratio is helpful for creating gradient stops, generating subtle tinted variants, or designing warm-leaning and cool-leaning versions of the same base color.
Does the mixer support transparency or alpha channels?
Some color mixers let you mix RGBA values including alpha, which simulates how a semi-transparent color would appear over a background. This is especially useful when designing overlays, glass effects, or layered UIs. If your tool only mixes RGB, you can still preview transparency separately by converting the result to RGBA afterward and applying the desired opacity in your CSS or design file.
No reviews yet
Be the first to share your experience with the Color Mixer.