/
Colorbook
Sign in Sign up

Color Information

Blue

Complete color analysis with professional format conversions, accessibility metrics, and harmonious color combinations for your design projects.

HEX Format
#5B91FF
RGB Values
91, 145, 255
HSL Values
220°, 100%, 68%
CMYK Values
64%, 43%, 0%, 0%

Color Variations & Tints

  • #A8C5FF

    Lightness: 83%

  • #8FB4FF

    Lightness: 78%

  • #75A3FF

    Lightness: 73%

  • #5B91FF

    Lightness: 68%

    Current color

  • #4281FF

    Lightness: 63%

  • #2970FF

    Lightness: 58%

  • #0F5FFF

    Lightness: 53%

Accessibility

White Text
3.0
FAIL
Black Text
6.9
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 #5B91FF

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

Current: #5B91FF

Discover More Colors

Explore a randomly curated selection of colors. Each refresh brings new inspiration for your palette.