Picking Color Palettes That Actually Work
Choosing colors for a website, a brand, or a personal project is one of those tasks that looks easy until you sit down to do it. There are infinite combinations, and most random combinations look bad — too jarring, too dull, or too unbalanced. Designers solve this by using a small set of established harmony rules drawn from color theory: pick a starting color and let the rules generate the others. This tool does that automatically. Hit generate to see a fresh five-color palette, lock the colors you like, and keep generating until the rest of the palette catches up.
The Five Harmony Rules
Analogous palettes pick colors that sit next to each other on the color wheel — for example, a blue, blue-green, and green together. They feel calm and cohesive because the colors share underlying hue properties. Good for nature scenes, soft brand identities, and any design that should feel unified rather than energetic.
Complementary palettes pair a color with the one directly opposite on the wheel — red with green, blue with orange, yellow with purple. The contrast is high and the result feels lively. Used in moderation, these palettes draw the eye instantly. Used heavily, they can feel chaotic, so the typical pattern is one dominant color with the complement used as an accent.
Triadic palettes use three colors evenly spaced around the wheel. They feel vibrant and balanced, each color reinforcing the others without overpowering them. Cartoonists, children's brands, and playful identities lean on triadic schemes because they feel both colorful and intentional.
Monochromatic palettes use a single hue at varying lightness and saturation. The effect is sophisticated, minimal, and easy on the eyes. Almost every premium brand identity ends up monochromatic in one form or another because it makes the rest of the design — typography, layout, photography — do the work.
Split-complementary palettes pick a base color and the two colors next to its complement. The result keeps the contrast of a complementary scheme but feels less aggressive because neither contrasting color is the exact opposite. A safe, energetic choice for most design problems.
Locking and Iterating
The locking workflow is the secret to using a palette generator effectively. Generate once, find one or two colors you really like, click them to lock them, then keep generating. The unlocked slots refresh while the locked ones stay put. Within a few iterations you usually have a complete palette where every color is one you actively chose. This works much better than trying to find a palette where all five colors land perfectly on the first random generation.
Reading Hex Codes
Each color is shown with its hex code — six characters preceded by a hash, like #2563eb. The first two characters are the red component (00 to FF in hexadecimal, or 0 to 255 in decimal), the next two are green, and the last two are blue. Click any hex code to copy it to your clipboard, or use the Copy CSS Variables button to grab the whole palette ready to paste into a stylesheet as --color-1 through --color-5 custom properties.
Accessibility Considerations
A pretty palette is not necessarily an accessible palette. When you put text on top of a colored background, the contrast between text and background determines whether the text is readable. The web standard target is a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text. Light backgrounds need dark text and vice versa. If your palette ends up with mid-tone colors that are hard to put text on, the solution is usually to add a near-white and a near-black to the palette and use the harmony colors only for accents — buttons, headings, illustrations, dividers — rather than backgrounds for body text.
Exporting Your Palette
The Copy CSS Variables button gives you a ready-to-paste block in modern CSS custom property syntax. You can also click each individual hex to copy a single value into Figma, Photoshop, Tailwind config, or any other design tool. The colors are not stored anywhere — when you close the tab they are gone — so screenshot or copy the palette before leaving if you want to come back to it. Using a screenshot tool to save the visual palette next to the codes is a fast way to build a personal swatch library.
Frequently Asked Questions
How many colors should a brand palette have?
For digital design, three to five core colors is the sweet spot. Add to that a near-white, a near-black, and one or two semantic colors (typically green for success and red for error) and you have a complete system.
What's the difference between RGB and hex?
They describe the same color the same way — three values for red, green, and blue. Hex just expresses each value as a two-character hexadecimal number for compactness. They are interchangeable in any modern tool.
Can I use these palettes commercially?
Yes. Color combinations cannot be copyrighted. Use any palette this tool generates anywhere, including commercial work, with no attribution required.
This palette generator is free, runs entirely in your browser, and never uploads anything. Bookmark it for the next time you need a fast starting point for a design.
Try also: Color Picker · Contrast Checker