Color swatch tool

This tool computes color palettes from a base color, delivering cohesive swatches for design systems, UI, branding, and accessibility-focused projects. Target users include web designers, product teams, frontend developers, and marketing teams seeking consistent color language.
Conceptually, it converts the base color into a defined color space, applies palette generation rules (analogous, complementary, triadic, or monochrome), and outputs a set of hex and RGB values. It performs contrast checks against accessibility guidelines to help ensure readability.
Unique value includes offline computations (no external color services), deterministic results for a given input, and options to specify contrast targets, tone ranges, and saturation caps. It also exposes a structured data output suitable for design tokens and style sheets.
Use cases include creating a brand-ready palette from a logo color, evaluating accessibility, generating light and dark variants, and exporting palettes to JSON or CSS variables for implementation.