/
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
#3F85CF
RGB Values
63, 133, 207
HSL Values
211°, 60%, 53%
CMYK Values
70%, 36%, 0%, 19%

Color Variations & Tints

  • #7CACDE

    Lightness: 68%

  • #689FD9

    Lightness: 63%

  • #5492D4

    Lightness: 58%

  • #3F85CF

    Lightness: 53%

    Current color

  • #3178C4

    Lightness: 48%

  • #2C6BAF

    Lightness: 43%

  • #275F9B

    Lightness: 38%

Accessibility

White Text
3.8
FAIL
Black Text
5.5
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 #3F85CF

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

Current: #3F85CF

Discover More Colors

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