#51A428
Color Details
HEX
#51A428
RGB
rgb(81, 164, 40)
HSL
hsl(100, 61%, 40%)
CMYK
cmyk(51%, 0%, 76%, 36%)
Best text on this color
#000000 (CR 6.69:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #51A428
#51A428 converts to RGB(81, 164, 40) and HSL(100, 61%, 40%). 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).
#51A428 FAQs
What is the RGB value of #51A428?
RGB: 81, 164, 40. Copy as CSS:
rgb(81, 164, 40)
Is #51A428 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #51A428?
Complement: #7b28a4.
Does #51A428 have good contrast on white or black?
On white: 3.14:1 (AA (large text)).
On black: 6.69:1 (AA (normal text)).