/
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
#231D53
RGB Values
35, 29, 83
HSL Values
247°, 48%, 22%
CMYK Values
58%, 65%, 0%, 67%

Color Variations & Tints

  • #3C318C

    Lightness: 37%

  • #342A79

    Lightness: 32%

  • #2C2466

    Lightness: 27%

  • #231D53

    Lightness: 22%

    Current color

  • #1B1740

    Lightness: 17%

  • #13102D

    Lightness: 12%

  • #0B091A

    Lightness: 7%

Accessibility

White Text
15.3
PASS
Black Text
1.4
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 #231D53

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

Current: #231D53

Discover More Colors

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