/
Colorbook
Sign in Sign up

Color Information

Black

Complete color analysis with professional format conversions, accessibility metrics, and harmonious color combinations for your design projects.

HEX Format
#28285C
RGB Values
40, 40, 92
HSL Values
240°, 39%, 26%
CMYK Values
57%, 57%, 0%, 64%

Color Variations & Tints

  • #404091

    Lightness: 41%

  • #383880

    Lightness: 36%

  • #30306E

    Lightness: 31%

  • #28285C

    Lightness: 26%

    Current color

  • #21214A

    Lightness: 21%

  • #191939

    Lightness: 16%

  • #111127

    Lightness: 11%

Accessibility

White Text
13.6
PASS
Black Text
1.5
FAIL
WCAG AA
PASS
WCAG AAA
PASS

Accessibility Guide

Contrast Ratios
Higher values (4.5+) ensure better readability for users with visual impairments.
WCAG AA Standard
Minimum requirement: 4.5:1 contrast for normal text, 3:1 for large text.
WCAG AAA Standard
Enhanced level: 7:1 contrast for normal text, 4.5:1 for large text.

Color Harmonies

  • Complementary

    Colors opposite on the color wheel, creating high contrast

  • Triadic

    Three evenly spaced colors forming a triangle on the color wheel

  • Analogous

    Adjacent colors on the color wheel, creating harmony and unity

Be picky and fine tune your color: colors very near to #28285C

Systematic progression of extremely similar colors. Each color represents a precise step in lightness variation.

Current: #28285C

Discover More Colors

Explore a randomly curated selection of colors. Each refresh brings new inspiration for your palette.