Dark Blue

Deeply serious blue with authoritative presence

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This high-contrast shade offers a serious, authoritative feel that anchors corporate and security-focused interfaces. Because #00008b is exceptionally dark, it requires white text for readability, providing a 15.3:1 contrast ratio. Use it as a dominant background to ground moody designs or as a supporting tone against bright, warm accents. The hex code for this dark blue is #00008b.

Questions about Dark Blue

What is the hex code for Dark Blue?

Dark Blue is #00008b. In RGB that is rgb(0, 0, 139), in HSL hsl(240, 100%, 27%) and in CMYK 100%, 100%, 0%, 45%.

What colors complement this deep blue?

This shade pairs naturally with bright, warm accents like gold or coral to break its authoritative intensity. These high-energy opposites create a balanced, modern visual hierarchy, preventing the deep blue from feeling overly cold or heavy in your layout.

Is Dark Blue readable on white or black?

Dark Blue has a 15.29:1 contrast ratio on white and 1.37:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works for body text and on black it is too faint for text. Try other pairs in the contrast checker.

Dark Blue

Deeply serious blue with authoritative presence

Questions about Dark Blue

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