/
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
#173389
RGB Values
23, 51, 137
HSL Values
225°, 71%, 31%
CMYK Values
83%, 63%, 0%, 46%

Color Variations & Tints

  • #224CC9

    Lightness: 46%

  • #1E43B3

    Lightness: 41%

  • #1B3B9D

    Lightness: 36%

  • #173389

    Lightness: 31%

    Current color

  • #132B71

    Lightness: 26%

  • #10235C

    Lightness: 21%

  • #0C1A46

    Lightness: 16%

Accessibility

White Text
11.2
PASS
Black Text
1.9
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 #173389

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

Current: #173389

Discover More Colors

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