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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
#FD4828
RGB Values
253, 72, 40
HSL Values
9°, 98%, 57%
CMYK Values
0%, 72%, 84%, 1%

Color Variations & Tints

  • #FE8772

    Lightness: 72%

  • #FD7158

    Lightness: 67%

  • #FD5C3F

    Lightness: 62%

  • #FD4828

    Lightness: 57%

    Current color

  • #FD310D

    Lightness: 52%

  • #ED2602

    Lightness: 47%

  • #D42202

    Lightness: 42%

Accessibility

White Text
3.4
FAIL
Black Text
6.1
PASS
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 #FD4828

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

Current: #FD4828

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