#51A8B1

Color Details

HEX
#51A8B1
RGB
rgb(81, 168, 177)
HSL
hsl(186, 38%, 51%)
CMYK
cmyk(54%, 5%, 0%, 31%)
Best text on this color #000000 (CR 7.59:1) Determined by WCAG contrast ratio

Readability Previews

Black on #51a8b1
Contrast 7.59:1 AAA
White on #51a8b1
Contrast 2.77:1 Fail
#51a8b1 on Black
Contrast 7.59:1 AAA
#51a8b1 on White
Contrast 2.77:1 Fail

Tints & Shades

#74b9c1
#97cbd0
#b9dce0
#41868e
#31656a
#204347

Complement & Analogous

#b25c53
#5379b2
#53b28c

Triadic

#b253a8
#a8b253

Monochrome

#204347 #31656a #51a8b1 #97cbd0 #b9dce0 #dceeef

Analogous

#53b28c #87c9af #51a8b1 #7594c1 #5379b2 #42618e

Complementary Mix

#31656a #51a8b1 #97cbd0 #b25c53 #cd958f #743c36

Nearby Colors

#51a8b0
#51a8b2
#51a8a1
#51a8c1

Embed #51A8B1 swatch

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About #51A8B1

#51A8B1 converts to RGB(81, 168, 177) and HSL(186, 38%, 51%). 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).

#51A8B1 FAQs

What is the RGB value of #51A8B1?
RGB: 81, 168, 177. Copy as CSS: rgb(81, 168, 177)
Is #51A8B1 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #51A8B1?
Complement: #b25c53.
Does #51A8B1 have good contrast on white or black?
On white: 2.77:1 (Fails AA). On black: 7.59:1 (AAA (normal text)).