Palette Generator: Color Scheme Maker

What Is Palette Generator?

Palette Generator is a browser-based tool that applies color theory algorithms to generate mathematically balanced color palettes from a single base color. The tool offers three modes: Harmony (with 11 harmony types including complementary, analogous, triadic, tetradic, split-complementary, monochromatic, double-split-complementary, rectangle, clash, five-tone, and six-tone), Generate (with shades/tints/tones, constrained random, WCAG contrast pairs, gradient interpolation, and image color extraction), and Mood (with 20 mood-based presets). The result is a palette you can copy as hex values, download as a CSS variables file, a JSON object, SCSS variables, or a Tailwind config extension, or export as an Adobe Swatch Exchange (ASE) file. Everything runs in the browser; no data is sent to any server.

Key Features

• Complementary color schemes: Generates a two-color palette using colors directly opposite each other on the color wheel (180° apart), producing maximum contrast with inherent visual balance.
• Analogous color palettes: Produces three colors that sit adjacent on the color wheel, creating harmonious, low-contrast palettes well-suited to backgrounds and calm UI designs.
• Triadic and tetradic harmonies: Triadic uses three colors spaced evenly at 120° intervals; tetradic uses four colors at 90° intervals. Both provide rich multi-color options while maintaining harmony.
• Split-complementary schemes: A softer alternative to complementary — takes the base color and two colors adjacent to its complement rather than the complement itself. Verified in the component as the 'split-complementary' harmony type.
• Monochromatic variations: Generates multiple shades of the same hue by varying lightness, creating cohesive single-hue palettes.
• Adjust saturation and lightness: The base color input accepts any valid HEX value typed manually, chosen via a color picker widget, or generated randomly with the Randomize button.
• Copy colors in multiple formats: Each color in the palette has its own copy button. The "Copy All" button writes the entire palette as comma-separated HEX values and also records the action in the session history.
• Export palette as JSON, CSS, SCSS, Tailwind, or ASE: Five export formats are available directly from the tool, covering web development, stylesheet preprocessors, and Adobe design applications.

How to Use Palette Generator

Step 1: Choose your base color

Open Palette Generator. The tool loads with a default base color derived from your current site color scheme (the default scheme uses blue). Change it in three ways:

• Click the color swatch input (a native browser color picker opens)
• Type or paste a HEX value directly into the text field next to the swatch
• Click the "Randomize" button to generate a random HEX color

A large preview swatch updates in real time showing your base color with its hex value in contrasting text.

Step 2: Select a harmony type

Below the base color section, eleven harmony type buttons are displayed in a grid. Click one to select it:

The active harmony type button highlights in the primary color. The generated palette updates instantly on each selection change.

Step 3: Review the generated palette

The "Generated Palette" section shows two views of the result:

• A horizontal band of color blocks, each filling proportional width. Click any block to copy that color's HEX value directly.
• A list below the band showing each color's HEX code with a swatch and its own copy button. The first entry is labeled as the base color.

For example, starting from #e63946 with a triadic harmony produces:

#e63946  (base)
#46e639
#3946e6

Step 4: Copy or export

Use the export buttons to save the palette for your workflow:

• Export JSON: Downloads triadic-palette.json containing { baseColor, harmonyType, palette }.
• Export CSS: Downloads triadic-palette.css as :root CSS custom properties: --color-1, --color-2, etc.
• Export Tailwind JS: Downloads triadic-tailwind.js with a Tailwind config theme.extend.colors block using palette as the color family key with entries like color-1, color-2, etc.
• Export SCSS Variables: Downloads triadic-palette.scss with $color-1, $color-2, etc., plus a Sass map.
• Export ASE (premium): Downloads an Adobe Swatch Exchange binary file readable by Photoshop, Illustrator, and other Adobe applications.

Step 5: Save as a preset or reset

If you use this base color and harmony type combination regularly, use the Presets panel (Glyph Widgets supporter feature) to save it by name for one-click recall. To restore the defaults, click the Clear button — this resets to #8467c7 base color and complementary harmony type.

Practical Examples

Designing a landing page color system

Start with your primary brand color, for example #0f62fe (IBM Blue). Select the split-complementary harmony to get a softer contrast pairing. The result gives you a primary blue plus two warm accent options that work together without clashing. Export as CSS variables and paste directly into your stylesheet's :root block.

:root {
  --color-1: #0f62fe;
  --color-2: #fe620f;
  --color-3: #fe0f62;
}

Generating a Tailwind palette extension

You are building a Tailwind CSS project and need a custom color family. Enter your brand color, pick monochromatic to generate shades from light to dark, then export as Tailwind JS. The downloaded file gives you a ready-to-paste theme.extend.colors block where each shade is indexed as monochromatic-1, monochromatic-2, etc.

Preparing swatches for an Adobe Illustrator project

You need to match a web color palette in a print design. Enter the base color, choose your harmony type, then export as ASE. The binary ASE file follows the ASEF format and can be loaded directly into Illustrator's Swatches panel, preserving all RGB values without any manual re-entry.

Tips and Best Practices

The Randomize button sets a fully random HEX base color. Use it to explore harmonies you would not have chosen deliberately — it is a quick way to find unexpected starting points for a new design.

When comparing harmony types, notice that the base color is always the first entry in every generated palette. This lets you anchor your palette to a color you have already committed to (a logo color, a brand guideline value) while exploring different complementary options.

Triadic palettes work well when you need three clearly distinct functional colors — primary action, secondary action, and destructive or warning states. The 120° spacing ensures no two are too visually similar.

For accessibility, run the colors from your generated palette through the Contrast Checker before finalizing. Complementary pairs often meet WCAG contrast requirements but analogous palettes can produce combinations that fail for text use.

The history panel (supporter feature) records every "Copy All" action with the base color and harmony type, letting you return to a palette you generated earlier in the session without remembering the exact values.

Common Issues and Troubleshooting

Palette does not update when I type a HEX value: The tool reacts to every keystroke in the text input. If you type an incomplete or invalid HEX string, the generateHarmony function receives the current value and may produce unexpected output until the value is a valid 6-digit HEX. Type the complete value or use the color picker input to guarantee a valid result.

The Randomize button produces very dark or very light palettes: The generateRandomColor() function generates a full range of HEX values, including near-black and near-white. If the random result is too extreme, click Randomize again or adjust the base color manually using the color picker.

Export as ASE produces a file that Adobe cannot open: The ASE export builds a binary ASEF-format file in the browser using DataView. If the download contains zero bytes or the file is rejected, check that your browser supports Blob with application/octet-stream. Modern Chromium-based browsers and Firefox handle this correctly.

"Copy All" copies a comma-separated list but I need newline-separated values: The clipboard output uses , as a separator. Paste the values into a text editor and use find-and-replace to change , to a newline if your target tool requires one value per line.

Clear button resets to defaults: The Clear button is designed to restore default settings, including the base color from your current site color scheme and the complementary harmony type. This is expected behavior — it does not restore a previous custom color.

Privacy and Security

Palette Generator runs entirely client-side. All color harmony calculations happen in your browser using JavaScript — no color values, preferences, or export data are transmitted to any server. Exported files (JSON, CSS, SCSS, Tailwind JS, ASE) are generated as in-memory Blob objects and downloaded directly to your device. The tool works offline once the page has loaded.

Frequently Asked Questions

Is Palette Generator free to use?

Yes. The core palette generation and all standard export formats (JSON, CSS, SCSS, Tailwind JS) are free with no account required. The ASE export is a Glyph Widgets supporter feature, available with a $5+ Ko-fi donation that grants 30 days of premium access.

Does Palette Generator work offline?

Yes. Once the page has loaded in your browser, all color calculations and file exports work without an internet connection. The tool makes no network requests during normal palette generation.

Is my data safe with Palette Generator?

All calculations are performed locally in your browser. No color data, base colors, or export files are sent to any server. Your palette work is entirely private.

What is the difference between triadic and split-complementary?

Triadic selects three colors at exactly 120° intervals on the color wheel. Split-complementary takes your base color and two colors that flank its complement — the two colors that are 30° on either side of the opposite hue. Split-complementary typically produces less visual tension than a true complementary pair while still offering good contrast.

How do I use the exported CSS variables?

The CSS export produces a :root block with variables named --color-1, --color-2, etc. Paste this block into your stylesheet and reference the variables anywhere with var(--color-1). The filename includes the harmony type, so complementary-palette.css is clearly labeled.

Can I use the Tailwind export directly in my project?

The downloaded file is a Tailwind configuration snippet, not a complete tailwind.config.js. Copy the colors object from inside theme.extend.colors and merge it into your existing Tailwind config. The color family uses palette as the key with entries like color-1, color-2, etc., so you can reference colors as text-palette-color-1 or bg-palette-color-2 in your templates.

What is the ASE export format and who is it for?

ASE (Adobe Swatch Exchange) is a binary format that stores color swatches for use in Adobe Creative Suite applications including Photoshop, Illustrator, and InDesign. Designers working across both web (CSS) and print (Adobe apps) can use the ASE export to maintain color consistency across both environments without manually re-entering values.

How many colors does each harmony type generate?

Complementary generates 2 colors; analogous, triadic, split-complementary, and clash each generate 3; tetradic and rectangle each generate 4; double-split-complementary and five-tone each generate 5; six-tone generates 6; monochromatic generates a variable number of shades. All palette entries are displayed in the palette band and the list below it.

Can I start from a color I picked from an image?

Yes. Use the Image Color Picker to extract a color from a photo, copy its HEX value, then paste it into the base color text field in Palette Generator to build a harmony around it.

Can I save my favorite palettes?

With a Glyph Widgets supporter account, the Presets panel lets you save named presets storing the base color and harmony type. The History panel also records past "Copy All" operations, making it easy to find a palette you generated earlier.

Related Tools

• Color Blender — Blend two colors together and generate intermediate steps, complementing palette work.
• Color Picker — Pick a precise base color using a color wheel or sliders before generating a palette.
• Gradient Generator — Create CSS gradients using colors from your generated palette.
• Contrast Checker — Verify WCAG contrast ratios for any two colors from your palette before use in UI text.

Try Palette Generator now: Glyph Widgets Palette Generator