LowercaseOnline — Free Online Text Tools

Color Palette Generator

Generate beautiful, harmonious color palettes from any base color. Includes WCAG contrast ratios and CSS export.

Complementary Palette

Tints & Shades

Contrast Ratios (WCAG)

Showing contrast between palette colors and white/black text. AA requires ≥4.5:1, AAA requires ≥7:1.

CSS Custom Properties

Color Harmony Explained

Complementary: Colors opposite each other on the color wheel. High contrast and vibrant, good for making elements stand out.

Triadic: Three colors evenly spaced (120° apart). Vibrant and balanced, works well with one dominant and two accent colors.

Analogous: Colors adjacent on the wheel (±30°). Harmonious and natural-looking, great for backgrounds and serene designs.

Split-Complementary: The base color plus two colors adjacent to its complement. High contrast with less tension than complementary.

WCAG Contrast: Web Content Accessibility Guidelines require ≥4.5:1 contrast ratio for AA compliance and ≥7:1 for AAA on normal text.