/
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
#3351D3
RGB Values
51, 81, 211
HSL Values
229°, 65%, 51%
CMYK Values
76%, 62%, 0%, 17%

Color Variations & Tints

  • #7085E1

    Lightness: 66%

  • #5B73DC

    Lightness: 61%

  • #4661D8

    Lightness: 56%

  • #3351D3

    Lightness: 51%

    Current color

  • #2945C2

    Lightness: 46%

  • #253EAD

    Lightness: 41%

  • #203697

    Lightness: 36%

Accessibility

White Text
6.4
PASS
Black Text
3.3
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 #3351D3

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

Current: #3351D3

Discover More Colors

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