#00427F Hex Color
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#00427f is a dark blue with strong saturation and low lightness, giving it a cool, serious character. It suits finance, government, security, healthcare, and corporate branding. Use it as a dominant background with white text, which reaches about 10.1:1 contrast. The hex code #00427f pairs especially well with burgundy, warm gray, and muted gold.
Questions about #00427f
What is #00427f in RGB, HSL and CMYK?
In RGB, #00427f is rgb(0, 66, 127), in HSL hsl(209, 100%, 25%) and in CMYK 100%, 48%, 0%, 50%. Browse more shades of blue with names and hex codes.
What colors pair well with #00427f?
Burgundy, warm gray, and muted gold pair well with #00427f, adding warmth and contrast to its cool, saturated blue without weakening its serious character. Use warm neutrals for restrained layouts and muted gold for focused accents.
Is #00427f a warm or cool color?
#00427f reads as a cool color because its deep blue hue and low lightness create a crisp, reserved impression rather than a warm, energetic one, making it useful for designs that need authority, focus, or visual weight.
Is #00427f readable on white or black?
#00427f has a 10.06:1 contrast ratio on white and 2.08:1 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.