/
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
#216EB7
RGB Values
33, 110, 183
HSL Values
209°, 69%, 42%
CMYK Values
82%, 40%, 0%, 28%

Color Variations & Tints

  • #4694DD

    Lightness: 57%

  • #3087D9

    Lightness: 52%

  • #257BCB

    Lightness: 47%

  • #216EB7

    Lightness: 42%

    Current color

  • #1D619F

    Lightness: 37%

  • #19538A

    Lightness: 32%

  • #154674

    Lightness: 27%

Accessibility

White Text
5.3
PASS
Black Text
4.0
FAIL
WCAG AA
PASS
WCAG AAA
FAIL

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 #216EB7

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

Current: #216EB7

Discover More Colors

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