#278CA5 Hex Color
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#278ca5 is a muted, medium-dark cyan-blue with cool undertones and enough saturation to feel clear without becoming loud. Its refreshing, focused character supports trust and suits technology, communication, aerospace, and productivity interfaces. Use it as a supporting brand tone or UI background; black text reaches about a 5.4:1 contrast ratio. The hex code for this color is #278ca5.
Questions about #278ca5
What is #278ca5 in RGB, HSL and CMYK?
In RGB, #278ca5 is rgb(39, 140, 165), in HSL hsl(192, 62%, 40%) and in CMYK 76%, 15%, 0%, 35%.
What colors pair well with #278ca5?
Does #278ca5 look warm or cool?
#278ca5 reads as cool because its cyan-blue hue carries blue undertones, giving it a refreshing, focused feel rather than the warmth associated with yellow, orange, or red; it can communicate clarity, trust, and steady energy.
Is #278ca5 readable on white or black?
#278ca5 has a 3.90:1 contrast ratio on white and 5.38:1 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.