Ultramarine

#0012a7

Color Harmonies

Mathematical Matches
Monochromatic
#0e28ff#0017da#0012a7#000d74#000741
Analogous
#0064a7#0011a7#4300a7
Complementary
#0011a7#a79600
Split-Complementary
#0011a7#a74300#64a700
Triadic
#0011a7#a70011#11a700
Tetradic (Double Complementary)
#0011a7#a70064#a79600#00a743

Readability & Contrast

Accessibility Audit & WCAG Compliance

Use Case: Standard White Text

White Text

AAA PASS
The Future
is Color.
Contrast Ratio12.76:1
Use Case: Standard Black Text

Black Text

FAIL
The Future
is Color.
Contrast Ratio1.64:1
Optimized AAA Text

Suggested Text

AAA PASS
The Future
is Color.
Contrast Ratio7.17:1
Recommended Monochrome
#b6beff
Optimized AAA Background

Suggested Background

AAA PASS
The Future
is Color.
Contrast Ratio7.22:1
Suggested Complement
#dac400

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-[#0012a7] text-white">
  <!-- Your Content -->
</div>

tailwind.config.js

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'brand': '#0012a7',
      }
    }
  }
}