#5B51D9
Color Details
HEX
#5B51D9
RGB
rgb(91, 81, 217)
HSL
hsl(244, 64%, 58%)
CMYK
cmyk(58%, 63%, 0%, 15%)
Best text on this color
#FFFFFF (CR 5.80:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #5B51D9
#5B51D9 converts to RGB(91, 81, 217) and HSL(244, 64%, 58%). 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).
#5B51D9 FAQs
What is the RGB value of #5B51D9?
RGB: 91, 81, 217. Copy as CSS:
rgb(91, 81, 217)
Is #5B51D9 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #5B51D9?
Complement: #cfd84f.
Does #5B51D9 have good contrast on white or black?
On white: 5.80:1 (AA (normal text)).
On black: 3.62:1 (AA (large text)).