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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
#33000A
RGB Values
51, 0, 10
HSL Values
348°, 100%, 10%
CMYK Values
0%, 100%, 80%, 80%

Color Variations & Tints

  • #80001A

    Lightness: 25%

  • #660014

    Lightness: 20%

  • #4D000F

    Lightness: 15%

  • #33000A

    Lightness: 10%

    Current color

  • #1A0005

    Lightness: 5%

  • #000000

    Lightness: 0%

  • #000000

    Lightness: 0%

Accessibility

White Text
18.3
PASS
Black Text
1.1
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 #33000A

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

Current: #33000A

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