/
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
#4039CF
RGB Values
64, 57, 207
HSL Values
243°, 61%, 52%
CMYK Values
69%, 72%, 0%, 19%

Color Variations & Tints

  • #7D78DE

    Lightness: 67%

  • #6963D9

    Lightness: 62%

  • #554ED4

    Lightness: 57%

  • #4039CF

    Lightness: 52%

    Current color

  • #362FC1

    Lightness: 47%

  • #302AAC

    Lightness: 42%

  • #2B2598

    Lightness: 37%

Accessibility

White Text
7.8
PASS
Black Text
2.7
FAIL
WCAG AA
PASS
WCAG AAA
PASS

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 #4039CF

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

Current: #4039CF

Discover More Colors

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