#427BC1 Hex Color
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The hex code #427bc1 is a cool, medium blue with moderate saturation and a slightly muted finish. Its clear blue undertone suggests trust and reliability without feeling overly formal. Use it as a supporting brand color or UI accent in finance, technology, healthcare, and security products. Black text reaches about 4.8:1 contrast, enough for WCAG AA body text.
Questions about #427bc1
What is #427bc1 in RGB, HSL and CMYK?
In RGB, #427bc1 is rgb(66, 123, 193), in HSL hsl(213, 51%, 51%) and in CMYK 66%, 36%, 0%, 24%.
Does #427bc1 read as a warm or cool color?
#427bc1 reads as a cool blue because its hue leans toward cyan while moderate saturation keeps the effect controlled rather than vivid. Its medium lightness gives interfaces a clear and dependable presence without the weight of navy.
What colors pair well with #427bc1?
#427bc1 pairs well with charcoal, warm off-white, and muted terracotta, which balance its cool blue cast without making the palette feel generic. Use it as a supporting tone with warm neutrals or reserve it for accents against a pale background.
Is #427bc1 readable on white or black?
#427bc1 has a 4.34:1 contrast ratio on white and 4.83:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it works only for large text (24px, or 18.5px bold) and on black it works for body text. Try other pairs in the contrast checker.