/
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
#0B3B6A
RGB Values
11, 59, 106
HSL Values
210°, 81%, 23%
CMYK Values
90%, 44%, 0%, 58%

Color Variations & Tints

  • #1261AF

    Lightness: 38%

  • #105498

    Lightness: 33%

  • #0E4781

    Lightness: 28%

  • #0B3B6A

    Lightness: 23%

    Current color

  • #092E53

    Lightness: 18%

  • #06213C

    Lightness: 13%

  • #041425

    Lightness: 8%

Accessibility

White Text
11.4
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 #0B3B6A

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

Current: #0B3B6A

Discover More Colors

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