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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
#0387CE
RGB Values
3, 135, 206
HSL Values
201°, 97%, 41%
CMYK Values
99%, 34%, 0%, 19%

Color Variations & Tints

  • #22AFFC

    Lightness: 56%

  • #09A6FB

    Lightness: 51%

  • #0497E7

    Lightness: 46%

  • #0387CE

    Lightness: 41%

    Current color

  • #0377B5

    Lightness: 36%

  • #02669C

    Lightness: 31%

  • #025683

    Lightness: 26%

Accessibility

White Text
3.9
FAIL
Black Text
5.4
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 #0387CE

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

Current: #0387CE

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