/
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
#143DDB
RGB Values
20, 61, 219
HSL Values
228°, 83%, 47%
CMYK Values
91%, 72%, 0%, 14%

Color Variations & Tints

  • #4E6EEF

    Lightness: 62%

  • #365BEC

    Lightness: 57%

  • #1F48EA

    Lightness: 52%

  • #143DDB

    Lightness: 47%

    Current color

  • #1236C4

    Lightness: 42%

  • #102FAD

    Lightness: 37%

  • #0E2995

    Lightness: 32%

Accessibility

White Text
7.7
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 #143DDB

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

Current: #143DDB

Discover More Colors

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