/
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
#21048B
RGB Values
33, 4, 139
HSL Values
253°, 94%, 28%
CMYK Values
76%, 97%, 0%, 45%

Color Variations & Tints

  • #3307D5

    Lightness: 43%

  • #2D06BC

    Lightness: 38%

  • #2705A3

    Lightness: 33%

  • #21048B

    Lightness: 28%

    Current color

  • #1B0472

    Lightness: 23%

  • #150359

    Lightness: 18%

  • #0F0240

    Lightness: 13%

Accessibility

White Text
14.4
PASS
Black Text
1.5
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 #21048B

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

Current: #21048B

Discover More Colors

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