/
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
#151F89
RGB Values
21, 31, 137
HSL Values
235°, 73%, 31%
CMYK Values
85%, 77%, 0%, 46%

Color Variations & Tints

  • #202ECB

    Lightness: 46%

  • #1C29B5

    Lightness: 41%

  • #19249F

    Lightness: 36%

  • #151F89

    Lightness: 31%

    Current color

  • #121A73

    Lightness: 26%

  • #0E155D

    Lightness: 21%

  • #0B1047

    Lightness: 16%

Accessibility

White Text
13.2
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 #151F89

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

Current: #151F89

Discover More Colors

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