/
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
#63B5F8
RGB Values
99, 181, 248
HSL Values
207°, 91%, 68%
CMYK Values
60%, 27%, 0%, 3%

Color Variations & Tints

  • #ACD8FB

    Lightness: 83%

  • #94CCFA

    Lightness: 78%

  • #7BC0F9

    Lightness: 73%

  • #63B5F8

    Lightness: 68%

    Current color

  • #4BA9F7

    Lightness: 63%

  • #329EF5

    Lightness: 58%

  • #1A92F4

    Lightness: 53%

Accessibility

White Text
2.2
FAIL
Black Text
9.5
PASS
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 #63B5F8

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

Current: #63B5F8

Discover More Colors

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