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Colorbook
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Color Information

Red

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

HEX Format
#A51201
RGB Values
165, 18, 1
HSL Values
6°, 99%, 33%
CMYK Values
0%, 89%, 99%, 35%

Color Variations & Tints

  • #F41901

    Lightness: 48%

  • #DA1701

    Lightness: 43%

  • #C11401

    Lightness: 38%

  • #A51201

    Lightness: 33%

    Current color

  • #8E0F01

    Lightness: 28%

  • #750C01

    Lightness: 23%

  • #5B0A00

    Lightness: 18%

Accessibility

White Text
7.8
PASS
Black Text
2.7
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 #A51201

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

Current: #A51201

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