Ultramarine

#2b1fb2

Color Harmonies

Mathematical Matches
Monochromatic
#6156e1#382ada#2b1fb2#211787#16105b
Analogous
#1f5cb2#2b1fb2#751fb2
Complementary
#2b1fb2#a6b21f
Split-Complementary
#2b1fb2#b2751f#5cb21f
Triadic
#2b1fb2#b22b1f#1fb22b
Tetradic (Double Complementary)
#2b1fb2#b21f5c#a6b21f#1fb275

Readability & Contrast

Accessibility Audit & WCAG Compliance

Use Case: Standard White Text

White Text

AAA PASS
The Future
is Color.
Contrast Ratio10.81:1
Use Case: Standard Black Text

Black Text

FAIL
The Future
is Color.
Contrast Ratio1.94:1
Optimized AAA Text

Suggested Text

AAA PASS
The Future
is Color.
Contrast Ratio7.30:1
Recommended Monochrome
#d3d0fb
Optimized AAA Background

Suggested Background

AAA PASS
The Future
is Color.
Contrast Ratio7.23:1
Suggested Complement
#cdde12

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-indigo-800Approx

Arbitrary Value (JIT)

<div class="bg-[#2b1fb2] text-white">
  <!-- Your Content -->
</div>

tailwind.config.js

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'brand': '#2b1fb2',
      }
    }
  }
}