#3644C1 Hex Color

Bold blue-indigo with electric depth

Hex color #3644c1 graphic
Strong and saturated, #3644c1 is a cool blue-indigo with a slightly violet undertone and medium-dark value. Its assertive energy suits calls to action, technology branding, and finance dashboards. It also works in moody digital backgrounds, though large areas can feel intense. White text remains highly legible at about a 7.6:1 contrast ratio. The hex code is #3644c1.

Questions about #3644c1

What is #3644c1 in RGB, HSL and CMYK?
In RGB, #3644c1 is rgb(54, 68, 193), in HSL hsl(234, 56%, 48%) and in CMYK 72%, 65%, 0%, 24%.
What colors pair well with #3644c1?
#3644c1 pairs well with white, soft gray, and charcoal for crisp contrast, while pale lavender or muted gold can soften or warm its cool blue-indigo presence without competing with its saturated violet undertone.
Does #3644c1 read as a warm or cool color?
#3644c1 reads as a cool color because its blue base and slight violet undertone place it on the cooler side of the color wheel. That saturated character gives interfaces and branding a focused, confident digital feel.
Is #3644c1 readable on white or black?
#3644c1 has a 7.62:1 contrast ratio on white and 2.75:1 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.