#51A2EF

Color Details

HEX
#51A2EF
RGB
rgb(81, 162, 239)
HSL
hsl(209, 83%, 63%)
CMYK
cmyk(66%, 32%, 0%, 6%)
Best text on this color #000000 (CR 7.76:1) Determined by WCAG contrast ratio

Readability Previews

Black on #51a2ef
Contrast 7.76:1 AAA
White on #51a2ef
Contrast 2.70:1 Fail
#51a2ef on Black
Contrast 7.76:1 AAA
#51a2ef on White
Contrast 2.70:1 Fail

Tints & Shades

#74b5f2
#97c7f5
#b9daf9
#4182bf
#31618f
#204160

Complement & Analogous

#ef9e52
#5255ef
#52efec

Triadic

#ef52a3
#a3ef52

Monochrome

#204160 #31618f #51a2ef #97c7f5 #b9daf9 #dcecfc

Analogous

#52efec #86f4f2 #51a2ef #7577f2 #5255ef #4244bf

Complementary Mix

#31618f #51a2ef #97c7f5 #ef9e52 #f5c08f #9b6735

Nearby Colors

#51a2ee
#51a2f0
#51a2df
#51a2ff

Embed #51A2EF swatch

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About #51A2EF

#51A2EF converts to RGB(81, 162, 239) and HSL(209, 83%, 63%). 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).

#51A2EF FAQs

What is the RGB value of #51A2EF?
RGB: 81, 162, 239. Copy as CSS: rgb(81, 162, 239)
Is #51A2EF a web-safe color?
No — not in the 216-color “web-safe” palette.
What is the complementary color of #51A2EF?
Complement: #ef9e52.
Does #51A2EF have good contrast on white or black?
On white: 2.70:1 (Fails AA). On black: 7.76:1 (AAA (normal text)).