#51A8B5

Color Details

HEX
#51A8B5
RGB
rgb(81, 168, 181)
HSL
hsl(188, 40%, 51%)
CMYK
cmyk(55%, 7%, 0%, 29%)
Best text on this color #000000 (CR 7.62:1) Determined by WCAG contrast ratio

Readability Previews

Black on #51a8b5
Contrast 7.62:1 AAA
White on #51a8b5
Contrast 2.76:1 Fail
#51a8b5 on Black
Contrast 7.62:1 AAA
#51a8b5 on White
Contrast 2.76:1 Fail

Tints & Shades

#74b9c4
#97cbd3
#b9dce1
#418691
#31656d
#204348

Complement & Analogous

#b45d50
#5075b4
#50b48f

Triadic

#b450a7
#a7b450

Monochrome

#204348 #31656d #51a8b5 #97cbd3 #b9dce1 #dceef0

Analogous

#50b48f #85cbb1 #51a8b5 #7391c3 #5075b4 #405e90

Complementary Mix

#31656d #51a8b5 #97cbd3 #b45d50 #ce968d #753c34

Nearby Colors

#51a8b4
#51a8b6
#51a8a5
#51a8c5

Embed #51A8B5 swatch

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About #51A8B5

#51A8B5 converts to RGB(81, 168, 181) and HSL(188, 40%, 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).

#51A8B5 FAQs

What is the RGB value of #51A8B5?
RGB: 81, 168, 181. Copy as CSS: rgb(81, 168, 181)
Is #51A8B5 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #51A8B5?
Complement: #b45d50.
Does #51A8B5 have good contrast on white or black?
On white: 2.76:1 (Fails AA). On black: 7.62:1 (AAA (normal text)).