/
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
#304CD0
RGB Values
48, 76, 208
HSL Values
230°, 63%, 50%
CMYK Values
77%, 63%, 0%, 18%

Color Variations & Tints

  • #6E80DE

    Lightness: 65%

  • #596ED9

    Lightness: 60%

  • #445CD5

    Lightness: 55%

  • #304CD0

    Lightness: 50%

    Current color

  • #2A43BB

    Lightness: 45%

  • #263BA6

    Lightness: 40%

  • #213491

    Lightness: 35%

Accessibility

White Text
6.8
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 #304CD0

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

Current: #304CD0

Discover More Colors

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