#51A8B2

Color Details

HEX
#51A8B2
RGB
rgb(81, 168, 178)
HSL
hsl(186, 39%, 51%)
CMYK
cmyk(54%, 6%, 0%, 30%)
Best text on this color #000000 (CR 7.59:1) Determined by WCAG contrast ratio

Readability Previews

Black on #51a8b2
Contrast 7.59:1 AAA
White on #51a8b2
Contrast 2.77:1 Fail
#51a8b2 on Black
Contrast 7.59:1 AAA
#51a8b2 on White
Contrast 2.77:1 Fail

Tints & Shades

#74b9c1
#97cbd1
#b9dce0
#41868e
#31656b
#204347

Complement & Analogous

#b35b51
#5178b3
#51b38c

Triadic

#b351a9
#a9b351

Monochrome

#204347 #31656b #51a8b2 #97cbd1 #b9dce0 #dceef0

Analogous

#51b38c #85caaf #51a8b2 #7493c2 #5178b3 #41608f

Complementary Mix

#31656b #51a8b2 #97cbd1 #b35b51 #ce948e #743b35

Nearby Colors

#51a8b1
#51a8b3
#51a8a2
#51a8c2

Embed #51A8B2 swatch

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About #51A8B2

#51A8B2 converts to RGB(81, 168, 178) and HSL(186, 39%, 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).

#51A8B2 FAQs

What is the RGB value of #51A8B2?
RGB: 81, 168, 178. Copy as CSS: rgb(81, 168, 178)
Is #51A8B2 a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #51A8B2?
Complement: #b35b51.
Does #51A8B2 have good contrast on white or black?
On white: 2.77:1 (Fails AA). On black: 7.59:1 (AAA (normal text)).