#15b9cd
a dark, electric cyan · cool · closest name: skyblue
RGB
21, 185, 205
HSL
187°, 81%, 44%
CMYK
90, 10, 0, 20
Luminance
0.3927
Every format
| HEX | #15b9cd |
| RGB | rgb(21, 185, 205) |
| HSL | hsl(187, 81%, 44%) |
| CMYK | cmyk(90%, 10%, 0%, 20%) |
| LAB | lab(68.9 -30.8 -20.9) |
| LCH | lch(68.9 37.2 214.2) |
| OKLCH | oklch(0.720 0.121 208.7) |
Copy-ready code
/* CSS */
color: #15b9cd;
background-color: #15b9cd;
/* Tailwind (arbitrary) */
class="text-[#15b9cd] bg-[#15b9cd]"
/* SCSS */
$brand: #15b9cd;
/* SwiftUI */
Color(red: 0.082, green: 0.725, blue: 0.804)
/* Android */
Color.parseColor("#15b9cd")Accessibility — WCAG contrast
Aa
#15b9cd on white: 2.37:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#15b9cd on black: 8.85:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red8.2%
Green72.5%
Blue80.4%
CMYK percentages
Cyan89.8%
Magenta9.8%
Yellow0.0%
Key (black)19.6%
Color previews
#15b9cd text on a black background
contrast 8.85:1
Card sample
#15b9cd text on a white background
contrast 2.37:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #15b9cd;
Background color
Panel with #15b9cd background
background-color: #15b9cd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #15b9cd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(21, 185, 205, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(21, 185, 205, 0.45);
Border & gradient
Gradient panel
border: 3px solid #15b9cd; background: linear-gradient(135deg, #15b9cd, #153ECD);