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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
#91B31A
RGB Values
145, 179, 26
HSL Values
73°, 75%, 40%
CMYK Values
19%, 0%, 85%, 30%

Color Variations & Tints

  • #BDE236

    Lightness: 55%

  • #B6DF20

    Lightness: 50%

  • #A4C91D

    Lightness: 45%

  • #91B31A

    Lightness: 40%

    Current color

  • #7F9C16

    Lightness: 35%

  • #6D8613

    Lightness: 30%

  • #5B7010

    Lightness: 25%

Accessibility

White Text
2.4
FAIL
Black Text
8.7
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 #91B31A

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

Current: #91B31A

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