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Colorbook
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Color Information

Black

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

HEX Format
#556BB2
RGB Values
85, 107, 178
HSL Values
226°, 38%, 52%
CMYK Values
52%, 40%, 0%, 30%

Color Variations & Tints

  • #8B9ACB

    Lightness: 67%

  • #798AC3

    Lightness: 62%

  • #687BBB

    Lightness: 57%

  • #556BB2

    Lightness: 52%

    Current color

  • #4A60A5

    Lightness: 47%

  • #425594

    Lightness: 42%

  • #3A4B82

    Lightness: 37%

Accessibility

White Text
5.1
PASS
Black Text
4.1
FAIL
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 #556BB2

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

Current: #556BB2

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