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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
#1291DB
RGB Values
18, 145, 219
HSL Values
202°, 85%, 46%
CMYK Values
92%, 34%, 0%, 14%

Color Variations & Tints

  • #47B2F0

    Lightness: 61%

  • #2FA8EE

    Lightness: 56%

  • #189EEC

    Lightness: 51%

  • #1291DB

    Lightness: 46%

    Current color

  • #1080C1

    Lightness: 41%

  • #0E71AA

    Lightness: 36%

  • #0C6192

    Lightness: 31%

Accessibility

White Text
3.4
FAIL
Black Text
6.1
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 #1291DB

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

Current: #1291DB

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