/
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
#0D3D79
RGB Values
13, 61, 121
HSL Values
213°, 81%, 26%
CMYK Values
89%, 50%, 0%, 53%

Color Variations & Tints

  • #1460BD

    Lightness: 41%

  • #1154A6

    Lightness: 36%

  • #0F498F

    Lightness: 31%

  • #0D3D79

    Lightness: 26%

    Current color

  • #0A3161

    Lightness: 21%

  • #08254A

    Lightness: 16%

  • #051A33

    Lightness: 11%

Accessibility

White Text
10.7
PASS
Black Text
2.0
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 #0D3D79

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

Current: #0D3D79

Discover More Colors

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