/
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
#101529
RGB Values
16, 21, 41
HSL Values
228°, 44%, 11%
CMYK Values
61%, 49%, 0%, 84%

Color Variations & Tints

  • #25315F

    Lightness: 26%

  • #1E274D

    Lightness: 21%

  • #171E3B

    Lightness: 16%

  • #101529

    Lightness: 11%

    Current color

  • #090B16

    Lightness: 6%

  • #010204

    Lightness: 1%

  • #000000

    Lightness: 0%

Accessibility

White Text
18.1
PASS
Black Text
1.2
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 #101529

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

Current: #101529

Discover More Colors

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