/
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
#0B3189
RGB Values
11, 49, 137
HSL Values
222°, 85%, 29%
CMYK Values
92%, 64%, 0%, 46%

Color Variations & Tints

  • #114AD0

    Lightness: 44%

  • #0F42B8

    Lightness: 39%

  • #0D39A0

    Lightness: 34%

  • #0B3189

    Lightness: 29%

    Current color

  • #092871

    Lightness: 24%

  • #07205A

    Lightness: 19%

  • #051842

    Lightness: 14%

Accessibility

White Text
11.6
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 #0B3189

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

Current: #0B3189

Discover More Colors

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