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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
#313E6D
RGB Values
49, 62, 109
HSL Values
227°, 38%, 31%
CMYK Values
55%, 43%, 0%, 57%

Color Variations & Tints

  • #495CA2

    Lightness: 46%

  • #415290

    Lightness: 41%

  • #39487F

    Lightness: 36%

  • #313E6D

    Lightness: 31%

    Current color

  • #29345B

    Lightness: 26%

  • #212A4A

    Lightness: 21%

  • #192038

    Lightness: 16%

Accessibility

White Text
10.3
PASS
Black Text
2.0
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 #313E6D

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

Current: #313E6D

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