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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
#339AD1
RGB Values
51, 154, 209
HSL Values
201°, 63%, 51%
CMYK Values
76%, 26%, 0%, 18%

Color Variations & Tints

  • #72B9DF

    Lightness: 66%

  • #5DAEDA

    Lightness: 61%

  • #48A4D5

    Lightness: 56%

  • #339AD1

    Lightness: 51%

    Current color

  • #2B8BBF

    Lightness: 46%

  • #277CAA

    Lightness: 41%

  • #226D96

    Lightness: 36%

Accessibility

White Text
3.1
FAIL
Black Text
6.7
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 #339AD1

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

Current: #339AD1

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