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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
#D73807
RGB Values
215, 56, 7
HSL Values
14°, 94%, 44%
CMYK Values
0%, 74%, 97%, 16%

Color Variations & Tints

  • #F96234

    Lightness: 59%

  • #F84F1B

    Lightness: 54%

  • #F23E07

    Lightness: 49%

  • #D73807

    Lightness: 44%

    Current color

  • #C13206

    Lightness: 39%

  • #A82B05

    Lightness: 34%

  • #8F2504

    Lightness: 29%

Accessibility

White Text
4.7
PASS
Black Text
4.5
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 #D73807

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

Current: #D73807

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