/
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
#0D18AF
RGB Values
13, 24, 175
HSL Values
236°, 86%, 37%
CMYK Values
93%, 86%, 0%, 31%

Color Variations & Tints

  • #1B29EE

    Lightness: 52%

  • #111FDF

    Lightness: 47%

  • #0F1BC7

    Lightness: 42%

  • #0D18AF

    Lightness: 37%

    Current color

  • #0B1598

    Lightness: 32%

  • #0A1280

    Lightness: 27%

  • #080E68

    Lightness: 22%

Accessibility

White Text
11.9
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 #0D18AF

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

Current: #0D18AF

Discover More Colors

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