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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
#2D91E7
RGB Values
45, 145, 231
HSL Values
208°, 79%, 54%
CMYK Values
81%, 37%, 0%, 9%

Color Variations & Tints

  • #72B4EE

    Lightness: 69%

  • #5BA8EC

    Lightness: 64%

  • #449CE9

    Lightness: 59%

  • #2D91E7

    Lightness: 54%

    Current color

  • #1A84E0

    Lightness: 49%

  • #1876C9

    Lightness: 44%

  • #1569B2

    Lightness: 39%

Accessibility

White Text
3.3
FAIL
Black Text
6.3
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 #2D91E7

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

Current: #2D91E7

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