#278AB3 Hex Color
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#278ab3 is a cool, moderately muted blue with a slight cyan undertone and medium value. Its restrained saturation suggests trust and reliability without feeling severe, making it a strong supporting tone for finance, healthcare, technology, and government interfaces. Use it for buttons, links, or branded panels, with black text achieving about 5.4:1 contrast. The hex code is #278ab3.
Questions about #278ab3
What is #278ab3 in RGB, HSL and CMYK?
In RGB, #278ab3 is rgb(39, 138, 179), in HSL hsl(198, 64%, 43%) and in CMYK 78%, 23%, 0%, 30%. Browse more shades of blue with names and hex codes.
What colors pair well with #278ab3?
#278ab3 pairs well with white, pale gray, or charcoal for a calm interface, while warm terracotta or coral accents balance its cool cyan undertone and add energy without overwhelming the blue.
Is #278ab3 readable on white or black?
#278ab3 has a 3.90:1 contrast ratio on white and 5.37:1 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.