#51bcdf
a balanced, vivid cyan · cool · closest name: skyblue
RGB
81, 188, 223
HSL
195°, 69%, 60%
CMYK
64, 16, 0, 13
Luminance
0.4304
Every format
| HEX | #51bcdf |
| RGB | rgb(81, 188, 223) |
| HSL | hsl(195, 69%, 60%) |
| CMYK | cmyk(64%, 16%, 0%, 13%) |
| LAB | lab(71.6 -20.2 -26.6) |
| LCH | lch(71.6 33.4 232.8) |
| OKLCH | oklch(0.747 0.109 222.8) |
Copy-ready code
/* CSS */
color: #51bcdf;
background-color: #51bcdf;
/* Tailwind (arbitrary) */
class="text-[#51bcdf] bg-[#51bcdf]"
/* SCSS */
$brand: #51bcdf;
/* SwiftUI */
Color(red: 0.318, green: 0.737, blue: 0.875)
/* Android */
Color.parseColor("#51bcdf")Accessibility — WCAG contrast
Aa
#51bcdf on white: 2.19:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#51bcdf on black: 9.61:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red31.8%
Green73.7%
Blue87.5%
CMYK percentages
Cyan63.7%
Magenta15.7%
Yellow0.0%
Key (black)12.5%
Color previews
#51bcdf text on a black background
contrast 9.61:1
Card sample
#51bcdf text on a white background
contrast 2.19:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #51bcdf;
Background color
Panel with #51bcdf background
background-color: #51bcdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #51bcdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(81, 188, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(81, 188, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #51bcdf; background: linear-gradient(135deg, #51bcdf, #515DDF);