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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
#138AE6
RGB Values
19, 138, 230
HSL Values
206°, 85%, 49%
CMYK Values
92%, 40%, 0%, 10%

Color Variations & Tints

  • #55AEF1

    Lightness: 64%

  • #3EA2EF

    Lightness: 59%

  • #2697ED

    Lightness: 54%

  • #138AE6

    Lightness: 49%

    Current color

  • #117DD0

    Lightness: 44%

  • #0F6FB8

    Lightness: 39%

  • #0D61A0

    Lightness: 34%

Accessibility

White Text
3.6
FAIL
Black Text
5.8
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 #138AE6

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

Current: #138AE6

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