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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
#273D45
RGB Values
39, 61, 69
HSL Values
196°, 28%, 21%
CMYK Values
43%, 12%, 0%, 73%

Color Variations & Tints

  • #426876

    Lightness: 36%

  • #395965

    Lightness: 31%

  • #304B55

    Lightness: 26%

  • #273D45

    Lightness: 21%

    Current color

  • #1D2E34

    Lightness: 16%

  • #142024

    Lightness: 11%

  • #0B1114

    Lightness: 6%

Accessibility

White Text
11.4
PASS
Black Text
1.8
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 #273D45

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

Current: #273D45

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