#00539B Hex Color
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#00539b is a dark, saturated blue with cool cyan undertones and a steady, serious presence. Its low lightness gives finance, technology, government, and healthcare designs a controlled, dependable feel. Use the hex code #00539b as a dominant background or strong accent. White text reaches about 7.7:1 contrast, supporting readable small body copy.
Questions about #00539b
What is #00539b in RGB, HSL and CMYK?
In RGB, #00539b is rgb(0, 83, 155), in HSL hsl(208, 100%, 30%) and in CMYK 100%, 46%, 0%, 39%.
What colors pair well with #00539b?
#00539b pairs well with cream and terracotta, which soften its cool, saturated blue without weakening its authority; pale cyan can also create a cleaner, more technical contrast for interfaces and brand systems.
Is #00539b readable on white or black?
#00539b has a 7.74:1 contrast ratio on white and 2.71:1 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.