#5B51E3
Color Details
HEX
#5B51E3
RGB
rgb(91, 81, 227)
HSL
hsl(244, 72%, 60%)
CMYK
cmyk(60%, 64%, 0%, 11%)
Best text on this color
#FFFFFF (CR 5.63:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #5B51E3
#5B51E3 converts to RGB(91, 81, 227) and HSL(244, 72%, 60%). 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).
#5B51E3 FAQs
What is the RGB value of #5B51E3?
RGB: 91, 81, 227. Copy as CSS:
rgb(91, 81, 227)
Is #5B51E3 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #5B51E3?
Complement: #d9e250.
Does #5B51E3 have good contrast on white or black?
On white: 5.63:1 (AA (normal text)).
On black: 3.73:1 (AA (large text)).