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Colorbook
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Color Information

Yellow

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

HEX Format
#C9EC03
RGB Values
201, 236, 3
HSL Values
69°, 97%, 47%
CMYK Values
15%, 0%, 99%, 7%

Color Variations & Tints

  • #E0FC40

    Lightness: 62%

  • #DCFC27

    Lightness: 57%

  • #D8FB0E

    Lightness: 52%

  • #C9EC03

    Lightness: 47%

    Current color

  • #B4D303

    Lightness: 42%

  • #9EBA03

    Lightness: 37%

  • #89A102

    Lightness: 32%

Accessibility

White Text
1.4
FAIL
Black Text
15.5
PASS
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 #C9EC03

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

Current: #C9EC03

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