#1B51A1
Color Details
HEX
#1B51A1
RGB
rgb(27, 81, 161)
HSL
hsl(216, 71%, 37%)
CMYK
cmyk(83%, 50%, 0%, 37%)
Best text on this color
#FFFFFF (CR 7.67:1)
Determined by WCAG contrast ratio
Readability Previews
Monochrome
Analogous
Complementary Mix
About #1B51A1
#1B51A1 converts to RGB(27, 81, 161) and HSL(216, 71%, 37%). 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).
#1B51A1 FAQs
What is the RGB value of #1B51A1?
RGB: 27, 81, 161. Copy as CSS:
rgb(27, 81, 161)
Is #1B51A1 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #1B51A1?
Complement: #a16c1b.
Does #1B51A1 have good contrast on white or black?
On white: 7.67:1 (AAA (normal text)).
On black: 2.74:1 (Fails AA).