Overview

Color choice can make or break a design. Random color combinations look chaotic; deliberate palettes built on color theory feel intentional and professional. This tool generates harmonious palettes from a single base color using established color theory relationships: complementary (opposite on the color wheel), analogous (adjacent), triadic (three evenly spaced), and tetradic (four). It also extracts palettes from uploaded images and shows hex/RGB/HSL values for direct use in CSS or design files.

How It Works

Color theory expressed mathematically: a color in HSL has hue (0–360°), saturation, and lightness. Complementary = base hue + 180°. Triadic = base + 120° and base + 240°. Analogous = base ± 30°. The tool computes these mathematically, then displays the resulting palette with copy-to-clipboard for each color. Image-based palettes use color quantization (k-means clustering) to find the most dominant colors in the uploaded image.

When to Use This

Designing UI for a website or app (primary, secondary, accent colors). Picking colors for a brand identity. Coordinating slide deck visuals. Choosing paint colors for a room (start from one wall, find complementary trim). Creating data visualization color schemes (categorical or sequential). Generating themes for graphics — Instagram posts, YouTube thumbnails, blog headers.

Frequently Asked Questions