/
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
#243663
RGB Values
36, 54, 99
HSL Values
223°, 47%, 26%
CMYK Values
64%, 45%, 0%, 61%

Color Variations & Tints

  • #37539A

    Lightness: 41%

  • #314987

    Lightness: 36%

  • #2A3F74

    Lightness: 31%

  • #243663

    Lightness: 26%

    Current color

  • #1C2B4F

    Lightness: 21%

  • #16203C

    Lightness: 16%

  • #0F1629

    Lightness: 11%

Accessibility

White Text
11.8
PASS
Black Text
1.8
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 #243663

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

Current: #243663

Discover More Colors

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