#399ED4 Hex Color
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The hex code #399ed4 produces a cool, moderately muted blue with a clean cyan undertone and medium-light brightness. Its restrained saturation supports trust and reliability without feeling severe, making it useful for finance, healthcare, security, and technology interfaces. Use it as a supporting brand color or a large interface accent; black text reaches about 7.0:1 contrast for readable body copy.
Questions about #399ed4
What is #399ed4 in RGB, HSL and CMYK?
In RGB, #399ed4 is rgb(57, 158, 212), in HSL hsl(201, 64%, 53%) and in CMYK 73%, 25%, 0%, 17%.
What colors pair well with #399ed4?
#399ed4 pairs well with charcoal, warm white, and muted orange, which give its cool cyan undertone structure without making the palette feel harsh. Use charcoal for text and orange sparingly for calls to action or status accents.
Is #399ed4 readable on white or black?
#399ed4 has a 2.99:1 contrast ratio on white and 7.01:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.