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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
#515BB3
RGB Values
81, 91, 179
HSL Values
234°, 39%, 51%
CMYK Values
55%, 49%, 0%, 30%

Color Variations & Tints

  • #868DCA

    Lightness: 66%

  • #757DC2

    Lightness: 61%

  • #636CBB

    Lightness: 56%

  • #515BB3

    Lightness: 51%

    Current color

  • #4851A3

    Lightness: 46%

  • #404891

    Lightness: 41%

  • #383F80

    Lightness: 36%

Accessibility

White Text
6.0
PASS
Black Text
3.5
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 #515BB3

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

Current: #515BB3

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