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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
#306F70
RGB Values
48, 111, 112
HSL Values
181°, 40%, 31%
CMYK Values
57%, 1%, 0%, 56%

Color Variations & Tints

  • #46A3A4

    Lightness: 46%

  • #3F9192

    Lightness: 41%

  • #377F81

    Lightness: 36%

  • #306F70

    Lightness: 31%

    Current color

  • #285C5D

    Lightness: 26%

  • #204A4B

    Lightness: 21%

  • #183939

    Lightness: 16%

Accessibility

White Text
5.8
PASS
Black Text
3.6
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 #306F70

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

Current: #306F70

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