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Colorbook
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Color Information

Blue

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

HEX Format
#2509B2
RGB Values
37, 9, 178
HSL Values
250°, 90%, 37%
CMYK Values
79%, 95%, 0%, 30%

Color Variations & Tints

  • #3B16F3

    Lightness: 52%

  • #300CE4

    Lightness: 47%

  • #2B0BCB

    Lightness: 42%

  • #2509B2

    Lightness: 37%

    Current color

  • #21089B

    Lightness: 32%

  • #1C0783

    Lightness: 27%

  • #16066B

    Lightness: 22%

Accessibility

White Text
11.9
PASS
Black Text
1.8
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 #2509B2

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

Current: #2509B2

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