/
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
#3715CD
RGB Values
55, 21, 205
HSL Values
251°, 81%, 44%
CMYK Values
73%, 90%, 0%, 20%

Color Variations & Tints

  • #6142EB

    Lightness: 59%

  • #4E2BE9

    Lightness: 54%

  • #3D18E2

    Lightness: 49%

  • #3715CD

    Lightness: 44%

    Current color

  • #3013B4

    Lightness: 39%

  • #2A109D

    Lightness: 34%

  • #240E86

    Lightness: 29%

Accessibility

White Text
9.8
PASS
Black Text
2.2
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 #3715CD

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

Current: #3715CD

Discover More Colors

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