#5B51AC
Color Details
HEX
#5B51AC
RGB
rgb(91, 81, 172)
HSL
hsl(247, 36%, 50%)
CMYK
cmyk(47%, 53%, 0%, 33%)
Best text on this color
#FFFFFF (CR 6.53:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #5B51AC
#5B51AC converts to RGB(91, 81, 172) and HSL(247, 36%, 50%). This page provides quick readability checks, related hues (complementary and analogous), and ready-made palettes so you can drop the color into UI components, images, or CSS immediately.
Tip: Use the “Best text” chip above as a safe default foreground on this color (chosen by contrast ratio).
#5B51AC FAQs
What is the RGB value of #5B51AC?
RGB: 91, 81, 172. Copy as CSS:
rgb(91, 81, 172)
Is #5B51AC a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #5B51AC?
Complement: #a3ad52.
Does #5B51AC have good contrast on white or black?
On white: 6.53:1 (AA (normal text)).
On black: 3.22:1 (AA (large text)).