/
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
#3873CD
RGB Values
56, 115, 205
HSL Values
216°, 60%, 51%
CMYK Values
73%, 44%, 0%, 20%

Color Variations & Tints

  • #749EDC

    Lightness: 66%

  • #6090D7

    Lightness: 61%

  • #4B81D2

    Lightness: 56%

  • #3873CD

    Lightness: 51%

    Current color

  • #2F67BC

    Lightness: 46%

  • #2A5CA7

    Lightness: 41%

  • #255193

    Lightness: 36%

Accessibility

White Text
4.7
PASS
Black Text
4.5
PASS
WCAG AA
PASS
WCAG AAA
FAIL

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 #3873CD

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

Current: #3873CD

Discover More Colors

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