#5B51CE
Color Details
HEX
#5B51CE
RGB
rgb(91, 81, 206)
HSL
hsl(245, 56%, 56%)
CMYK
cmyk(56%, 61%, 0%, 19%)
Best text on this color
#FFFFFF (CR 5.98:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #5B51CE
#5B51CE converts to RGB(91, 81, 206) and HSL(245, 56%, 56%). 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).
#5B51CE FAQs
What is the RGB value of #5B51CE?
RGB: 91, 81, 206. Copy as CSS:
rgb(91, 81, 206)
Is #5B51CE a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #5B51CE?
Complement: #c3ce50.
Does #5B51CE have good contrast on white or black?
On white: 5.98:1 (AA (normal text)).
On black: 3.51:1 (AA (large text)).