/
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
#4237CF
RGB Values
66, 55, 207
HSL Values
244°, 61%, 51%
CMYK Values
68%, 73%, 0%, 19%

Color Variations & Tints

  • #7A73DD

    Lightness: 66%

  • #675FD8

    Lightness: 61%

  • #534AD3

    Lightness: 56%

  • #4237CF

    Lightness: 51%

    Current color

  • #372EBD

    Lightness: 46%

  • #3129A8

    Lightness: 41%

  • #2B2494

    Lightness: 36%

Accessibility

White Text
7.8
PASS
Black Text
2.7
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 #4237CF

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

Current: #4237CF

Discover More Colors

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