#3B4451 Hex Color
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The hex code #3b4451 is a dark, muted blue-gray with cool, ashy undertones and a matte, almost inky finish. Its low saturation gives interfaces a serious, controlled mood suited to finance, security, technology, and government design. Use it as a supporting dark tone or UI background; white text reaches about 9.9:1 contrast for clear body copy.
Questions about #3b4451
What is #3b4451 in RGB, HSL and CMYK?
In RGB, #3b4451 is rgb(59, 68, 81), in HSL hsl(215, 16%, 27%) and in CMYK 27%, 16%, 0%, 68%.
What colors pair well with #3b4451?
#3b4451 pairs well with soft white, pale blue, muted sage, and warm terracotta accents. These lighter or warmer notes prevent its low-saturation blue-gray base from making a palette feel overly heavy or flat.
Is #3b4451 warm or cool?
#3b4451 reads as cool because its dark blue-gray base has ashy undertones and low saturation. It feels more controlled than vivid, making it effective for dark interfaces, security branding, finance layouts, and formal visual systems.
Is #3b4451 readable on white or black?
#3b4451 has a 9.85:1 contrast ratio on white and 2.13:1 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.