How does color blending work?

It's linear interpolation, but the choice of color space changes the result. In RGB you average each channel independently. In HSL you interpolate hue along the shorter path around the wheel and blend saturation and lightness linearly. In LAB you interpolate in a perceptually uniform space, which is what makes the blends look natural to the eye. RGB midpoints between, say, red and green often come out muddier than expected; LAB and LCH avoid that.

What's the difference between RGB, HSL, and LAB blending?

RGB is the simplest because it just averages channels, but the midpoints frequently look muddy. HSL is more intuitive when you think in terms of hue, saturation, and lightness, but it's not perceptually uniform either. LAB and its cylindrical cousin LCH are perceptually uniform color spaces, which means equal numerical steps look like equal visual steps — that's what gives LAB blends their natural feel. For serious design work, HSL or LAB usually beats RGB.

How are tints and shades created?

Tints come from blending the base color with white, which lightens it. Shades come from blending with black, which darkens it. Tones come from blending with gray, which desaturates. Walking through a series of percentages — 10%, 30%, 50%, and so on — generates a full shade scale, and that ladder is the foundation of how most design systems define hover, focus, disabled, and elevated surface variants.

How many blend stops should I use?

For gradients, two to five stops is usually plenty — CSS handles the in-between math automatically, and adding stops mostly lets you bend the curve through the muddy midpoints rather than pad the count. For design system shade scales, somewhere between five and ten levels (the familiar 50 / 100 / 200 / through 900 ladder) gives enough granularity for hover, focus, disabled, surface, and elevation states. Document the scale clearly: 50 is your lightest, 900 your darkest.

Why does red plus green equal brown?

Complementary colors — anything sitting opposite each other on the color wheel — collapse toward neutral when you mix them equally. Red and green at a 50/50 ratio land on something muddy that reads as brown or gray. The same dynamic plays out for blue and orange, or purple and yellow. It's a real-world observation about additive color mixing, and it's exactly why thoughtful designers avoid 50/50 blends of complementary pairs unless 'muddy' is what they're after.

Does it work for print colors (CMYK)?

Most blenders, including this one, work in RGB because that's what screens use. Print uses subtractive CMYK ink mixing, which produces meaningfully different results — the same hex code can look surprisingly different on paper than on a monitor. The tool is great for digital design but for print work you'll want to consult the relevant color profiles, run a proof, and verify the swatches against an actual press output before committing.

Is the data sent anywhere?

No. Color blending is just arithmetic in JavaScript, all of it running inside your browser. The hex codes and palettes you experiment with stay on your machine, which matters when you're working on a brand refresh, a stealth product launch, or any design that hasn't been announced yet.

Color Blender

Blend two colors together online with adjustable mix ratio. Free color blender that generates smooth transitions and midpoint colors.

Color Tools

Instant results

Color 1

Color 2

Midpoint Blend (50/50)

Gradient Steps: 5

Blended Gradient

CSS Gradient

background: linear-gradient(to right, #ff0000, #bf0040, #800080, #4000bf, #0000ff);

About Color Blender

Blend two colors together and generate a smooth gradient between them. Click any color swatch to copy its hex value.

How to Use Color Blender

Pick two or more colors

Drop in the colors you want to blend through the pickers or paste in their hex values. Two colors handle most everyday cases, but adding more stops gives you finer control over multi-step gradients and shade scales for design systems.

Set blend percentages

Choose how far along the blend you want to land. A 50 percent setting gives you the midpoint between the two colors, while a 25/75 split skews toward the first color. Stacking several intermediate percentages produces the kind of multi-stop gradient that gives you fine control over how the curve bends through the muddy middle.

Choose color space

Decide which color space the math runs in. RGB is the simplest and just averages each channel, but the midpoints often look muddier than the eye expects. HSL is more intuitive when you're thinking in hue and lightness terms. LAB is perceptually uniform and produces the most natural-looking blends, which is why most professional tools default to it for serious design work.

Use blended colors

Take the resulting colors and put them to work. CSS linear-gradient declarations are the obvious destination, but the same blended values feed cleanly into design system shade scales, animation keyframes, and creative color exploration. Copy individual hex codes or grab a ready-made gradient snippet, depending on what you need.

When to Use Color Blender

Building gradients

Smooth transitions between two colors are the bread and butter of gradient design, and pinning down good intermediate stops is much easier when you can see them rendered in real time. The same generated stops feed into CSS gradients, animation keyframes for libraries like Framer Motion or GSAP, and color interpolation in generative art.

Tints and shades

Mixing the base color with white gives you tints, mixing with black gives shades, and mixing with gray gives tones. That's the core of how design systems generate full shade scales — hover states, focus rings, disabled variants, and elevated surfaces all come from the same simple operation.

Color matching

Sometimes you need a color that sits between two known ones — for paint matching, brand color tweaks, or just finding the 'in-between' that pulls a design together. Sliding the blend ratio gives you a continuous range to pick from rather than guessing in a color picker.

Color theory in action

Watching the same two colors blend through RGB, HSL, and LAB makes the differences between color spaces concrete. The classic muddy mid-purple of an RGB red-to-green blend is the textbook example of why perceptually uniform spaces like LAB exist, and seeing both renders side by side teaches the concept faster than any diagram.

Color Blender Examples

RGB blend

Input

Color 1: #FF0000 (red), Color 2: #0000FF (blue), 50%

Output

RGB blend: #800080 (purple). Mathematical midpoint: (255+0)/2=127, (0+0)/2=0, (0+255)/2=127.

RGB blending is just per-channel averaging — (255+0)/2 in red, (0+0)/2 in green, (0+255)/2 in blue gives the midpoint #800080. The math is simple, the result is fine for a red-blue blend, but for many color pairs the midpoints look muddier than the eye expects. LAB or LCH is what most professional tools reach for when perceptual accuracy matters.

Multiple stops

Input

Red → Yellow → Green, blend at 25/50/75%

Output

0%: #FF0000 (red), 25%: #FFA000, 50%: #FFFF00 (yellow), 75%: #80FF00, 100%: #00FF00 (green).

Routing the gradient through yellow at the midpoint avoids the muddy mid-band you'd get blending red straight into green, which is exactly why heat-map color scales tend to pass through warm yellows rather than fading directly. The same trick shows up in gradient backgrounds and color-driven animations.

Tint and shade

Input

Base: #4A90E2 (blue), 30% white (tint), 30% black (shade)

Output

Tint (lighter): #84B4ED. Shade (darker): #336599.

Mixing 30% white into the base lifts it to a tint at #84B4ED, and the same 30% mix with black darkens it to #336599. That's the bread and butter of design system shade scales — slightly darker for hover, slightly lighter for disabled, and a few extra steps in either direction for surfaces and elevations.

Tips & Best Practices for Color Blender

1.RGB midpoints often look muddier than the eye expects. HSL gets you intuitive results when you know what you're doing, and LAB or its cylindrical cousin LCH produce perceptually uniform blends that feel right in a way RGB doesn't. Pick the space deliberately rather than always defaulting to RGB.
2.Tints from white and shades from black are the workhorse blends for design systems. Generating somewhere between five and ten levels along that scale gives you enough room to express hover, focus, disabled, surface, and elevation states without inventing one-off colors later.
3.Be careful with 50/50 blends of complementary colors. Red plus green at the midpoint resolves to mud, blue plus orange to brown. Anything sitting opposite on the color wheel collapses toward neutral when you mix it equally, which is rarely what you want in a design.
4.More stops makes a gradient smoother. CSS already interpolates between any two colors automatically, but adding three to five well-chosen intermediate stops gives you precise control over how the curve bends, especially when you want to avoid muddy mid-range bands.
5.Match the blending model to where the result will land. Screens use additive RGB; print presses use subtractive CMYK. The math is genuinely different, and most online tools (this one included) operate in RGB, so any print work needs a separate verification step against the actual color profile.
6.Save blends with descriptive names tied to their parent colors. Logging the result as 'hover state of brand blue' is much more meaningful in a design system than 'a slightly lighter #84B4ED', and the relationship is what your team will reach for six months later.

Frequently Asked Questions

It mixes two or more colors and shows you the intermediate results. That's useful for designing gradients with smooth transitions, generating tints and shades for design systems, and just exploring 'what's between blue and green' as a creative aid. Under the hood it's mathematical interpolation between the input colors, with the option to pick which color space the math runs in.

Color Blender

Blended Gradient

CSS Gradient

About Color Blender

How to Use Color Blender

Pick two or more colors

Set blend percentages

Choose color space

Use blended colors

When to Use Color Blender

Building gradients

Tints and shades

Color matching

Color theory in action

Color Blender Examples

RGB blend

Multiple stops

Tint and shade

Tips & Best Practices for Color Blender

Frequently Asked Questions

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