/
Colorbook
Sign in Sign up

Color Information

Blue

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

HEX Format
#231D5E
RGB Values
35, 29, 94
HSL Values
246°, 53%, 24%
CMYK Values
63%, 69%, 0%, 63%

Color Variations & Tints

  • #392F98

    Lightness: 39%

  • #322985

    Lightness: 34%

  • #2B2371

    Lightness: 29%

  • #231D5E

    Lightness: 24%

    Current color

  • #1C174A

    Lightness: 19%

  • #151137

    Lightness: 14%

  • #0D0B23

    Lightness: 9%

Accessibility

White Text
14.9
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 #231D5E

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

Current: #231D5E

Discover More Colors

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