Creating a beautiful and functional color palette is one of the most important steps in any design project. This advanced color palette generator gives designers and developers a powerful set of tools to build, preview, and export color palettes with precision. Whether you are working on a web app, a brand identity, or a UI system, this tool adapts to your needs efficiently.
How the base color selection works
Everything starts with choosing a base color that will drive the entire palette generation process. You can use the native color picker to visually select any color you want to work with. Alternatively, you can type a hexadecimal value directly into the input field for precise control. The tool instantly updates the palette as soon as you change the base color in any way.
Understanding color harmony modes
The generator offers six distinct harmony modes based on classic color theory principles used by professional designers. Complementary mode places two opposite colors on the wheel, creating a strong and vibrant visual contrast. Analogous mode selects neighbor colors that transition smoothly and feel naturally cohesive together. Triadic mode evenly spaces three colors at 120 degrees apart, keeping the palette energetic and balanced. Tetradic mode uses two complementary pairs at 90 degrees, offering a richer and more versatile color system. Split-complementary gives you the base color plus two neighbors of its complement, which is softer than direct complementary. Finally, monochromatic mode generates multiple shades of the same hue, producing a clean and consistent visual result.
Adjusting the number of colors and temperature
You can define how many colors the palette should contain, ranging from two up to twelve distinct swatches. The temperature slider lets you shift the overall hue of the entire palette toward warm or cool tones. Moving the slider to the right adds a warm orange or red shift across all generated colors. Moving it to the left introduces cooler blue or green tones throughout the entire palette simultaneously.
Manual HSL adjustment in real time
One of the most powerful features is the manual HSL adjustment section, which gives precise control over any individual palette color. You simply select a color from the dropdown menu and use the three sliders to adjust hue, saturation, and lightness. As you move each slider, a live preview swatch updates instantly so you can see the result before confirming. The palette strip, grid view, live UI preview, and contrast checker all update in real time as you adjust. When you are satisfied with the result, you click the apply button to lock the color permanently into the palette. If you change your mind, the cancel button reverts everything cleanly back to the previous palette state.
Using preset colors for quick inspiration
The preset colors section displays a collection of twenty carefully selected swatches covering a wide range of hues. Clicking any preset instantly sets it as the new base color and regenerates the full palette around it. This feature is especially useful when you need a quick starting point or want to explore different color directions rapidly.
Locking colors to keep them fixed
Each color in the palette strip has a small lock button that you can toggle to pin that color in place. When a color is locked, the generator will keep it unchanged even when you generate a new palette. This is very useful when you already love one or two colors and want to explore variations around them. You can lock as many colors as you need and unlock them individually at any time.
Previewing the palette on a real UI
The live UI preview section renders your palette directly onto two realistic interface mockups side by side. The first card simulates a light mode interface showing headers, buttons, chips, and body text using your colors. The second card shows the same layout in a dark mode context to help you evaluate readability across both themes. This preview updates automatically every time the palette or any individual color changes, including during HSL adjustments.
Checking contrast for accessibility
The WCAG contrast checker section evaluates each palette color against a chosen text color for accessibility compliance. For each swatch, it displays the contrast ratio and the corresponding WCAG level, which can be AAA, AA, AA Large, or Fail. You can change the text color using the color picker or by typing a hex value directly into the input field. This feature ensures your palette meets accessibility standards before you integrate it into any real project.
Comparing multiple palette versions
The side-by-side comparer allows you to save multiple palette versions and display them together for easy comparison. Each saved palette shows a mini color strip and the list of all hex values it contains. You can remove any saved palette individually or clear the entire comparison list with one click. This feature is ideal when you are exploring different harmony modes or temperature settings and want to compare the results visually.
Exporting the palette in multiple formats
Once your palette is ready, you can export the color values in four different code formats for immediate use in your project. CSS variables format generates a clean root block with custom property names based on your harmony mode. SCSS format outputs dollar-sign variables with the same naming convention, ready for any Sass workflow. JSON format provides a structured object that works perfectly with design tokens or JavaScript-based theming systems. The JS array format gives you a simple array with inline comments identifying each color by name. You can also export the palette as a PNG, JPEG, or WEBP image for sharing or documentation purposes. The SVG export copies the palette as a scalable vector graphic directly to your clipboard for use in any design tool.
Persistence across sessions
The tool automatically saves your current state to the browser’s local storage after every change you make. This means your base color, harmony mode, locked colors, temperature, and compare palettes are all restored when you reopen the page. A reset button is always available if you want to return to the default state and start fresh from the beginning.