Cobalt

#0047ab

Color Harmonies

Mathematical Matches
Monochromatic
#1274ff#005cde#0047ab#003278#001d45
Analogous
#009dab#0047ab#0e00ab
Complementary
#0047ab#ab6400
Split-Complementary
#0047ab#ab0e00#9dab00
Triadic
#0047ab#ab0047#47ab00
Tetradic (Double Complementary)
#0047ab#ab009d#ab6400#00ab0e

Readability & Contrast

Accessibility Audit & WCAG Compliance

Use Case: Standard White Text

White Text

AAA PASS
The Future
is Color.
Contrast Ratio8.43:1
Use Case: Standard Black Text

Black Text

FAIL
The Future
is Color.
Contrast Ratio2.48:1
Optimized AAA Text

Suggested Text

AAA PASS
The Future
is Color.
Contrast Ratio7.04:1
Recommended Monochrome
#deecff
Optimized AAA Background

Suggested Background

AAA PASS
The Future
is Color.
Contrast Ratio7.02:1
Suggested Complement
#ffe7c5

Vision Deficiency Simulations

Protanopia

Red Blind

Deuteranopia

Green Blind

Tritanopia

Blue Blind

Achromatopsia

Total Color Blind

Developer Tools

Ready-to-use snippets for your codebase.

Closest Standard Class

bg-blue-800Approx

Arbitrary Value (JIT)

<div class="bg-[#0047ab] text-white">
  <!-- Your Content -->
</div>

tailwind.config.js

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'brand': '#0047ab',
      }
    }
  }
}