#5B51BB
Color Details
HEX
#5B51BB
RGB
rgb(91, 81, 187)
HSL
hsl(246, 44%, 53%)
CMYK
cmyk(51%, 57%, 0%, 27%)
Best text on this color
#FFFFFF (CR 6.29:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #5B51BB
#5B51BB converts to RGB(91, 81, 187) and HSL(246, 44%, 53%). 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).
#5B51BB FAQs
What is the RGB value of #5B51BB?
RGB: 91, 81, 187. Copy as CSS:
rgb(91, 81, 187)
Is #5B51BB a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #5B51BB?
Complement: #b1bc52.
Does #5B51BB have good contrast on white or black?
On white: 6.29:1 (AA (normal text)).
On black: 3.34:1 (AA (large text)).