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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
#1D4FCD
RGB Values
29, 79, 205
HSL Values
223°, 75%, 46%
CMYK Values
86%, 61%, 0%, 20%

Color Variations & Tints

  • #517BE6

    Lightness: 61%

  • #3B6AE3

    Lightness: 56%

  • #2459E0

    Lightness: 51%

  • #1D4FCD

    Lightness: 46%

    Current color

  • #1A47B7

    Lightness: 41%

  • #173EA1

    Lightness: 36%

  • #14358A

    Lightness: 31%

Accessibility

White Text
6.9
PASS
Black Text
3.1
FAIL
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 #1D4FCD

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

Current: #1D4FCD

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