Color Palette Tool

This tool accepts a base color and a chosen harmony to generate a cohesive set of colors for UI, branding, or data visuals. It normalizes inputs, converts between color spaces, and outputs a hex list plus CSS variables and a JSON payload for easy integration. By supporting common harmonies (analogous, complementary, triadic, monochromatic), it ensures predictable relationships between colors while allowing user adjustments for saturation and lightness. The approach emphasizes speed, repeatability, and accessibility, enabling designers to test multiple palettes without manual trial-and-error. The core value lies in providing ready-to-export tokens that align with design systems and codebases, reducing hand-off friction. This tool is especially useful for rapid prototyping, theming, and maintaining brand consistency across platforms.
It operates conceptually by applying controlled hue offsets and perceptual adjustments to the base color, then validating for contrast against typical UI text scenarios. The resulting palette can be exported as CSS variables, a plain HEX list, or a structured JSON payload that maps color roles to color values. The combination of generation, validation, and export capabilities gives teams a reliable workflow for color governance.
Users include product designers, frontend engineers, and branding specialists who need repeatable color relationships with minimal overhead. Its unique value is the integrated cycle of input normalization, palette construction, accessibility checks, and multi-format output within a single tool, which is especially helpful when iterating on color systems or adapting palettes for dark/light modes.
Core features include: base color input, harmony selection, color count, optional saturation/lightness tweaks, contrast validation, and multi-format exports. Common use cases are creating primary/secondary palettes and exporting color tokens for CSS and design tokens.