/
Colorbook
Sign in Sign up

Color Information

Black

Complete color analysis with professional format conversions, accessibility metrics, and harmonious color combinations for your design projects.

HEX Format
#3F5566
RGB Values
63, 85, 102
HSL Values
206°, 24%, 32%
CMYK Values
38%, 17%, 0%, 60%

Color Variations & Tints

  • #5B7C95

    Lightness: 47%

  • #516F85

    Lightness: 42%

  • #486175

    Lightness: 37%

  • #3F5566

    Lightness: 32%

    Current color

  • #344755

    Lightness: 27%

  • #2B3A46

    Lightness: 22%

  • #212D36

    Lightness: 17%

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 #3F5566

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

Current: #3F5566

Discover More Colors

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