/
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
#1D2281
RGB Values
29, 34, 129
HSL Values
237°, 63%, 31%
CMYK Values
78%, 74%, 0%, 49%

Color Variations & Tints

  • #2B33BF

    Lightness: 46%

  • #272DAA

    Lightness: 41%

  • #222896

    Lightness: 36%

  • #1D2281

    Lightness: 31%

    Current color

  • #191D6C

    Lightness: 26%

  • #141757

    Lightness: 21%

  • #0F1243

    Lightness: 16%

Accessibility

White Text
13.1
PASS
Black Text
1.6
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 #1D2281

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

Current: #1D2281

Discover More Colors

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