#5B51D5
Color Details
HEX
#5B51D5
RGB
rgb(91, 81, 213)
HSL
hsl(245, 61%, 58%)
CMYK
cmyk(57%, 62%, 0%, 16%)
Best text on this color
#FFFFFF (CR 5.86:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #5B51D5
#5B51D5 converts to RGB(91, 81, 213) and HSL(245, 61%, 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).
#5B51D5 FAQs
What is the RGB value of #5B51D5?
RGB: 91, 81, 213. Copy as CSS:
rgb(91, 81, 213)
Is #5B51D5 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #5B51D5?
Complement: #cad553.
Does #5B51D5 have good contrast on white or black?
On white: 5.86:1 (AA (normal text)).
On black: 3.58:1 (AA (large text)).