#21fbc9
a balanced, electric cyan · cool · closest name: aquamarine
RGB
33, 251, 201
HSL
166°, 97%, 56%
CMYK
87, 0, 20, 2
Luminance
0.7353
Every format
| HEX | #21fbc9 |
| RGB | rgb(33, 251, 201) |
| HSL | hsl(166, 97%, 56%) |
| CMYK | cmyk(87%, 0%, 20%, 2%) |
| LAB | lab(88.7 -59.7 10.4) |
| LCH | lch(88.7 60.6 170.1) |
| OKLCH | oklch(0.881 0.169 171.0) |
Copy-ready code
/* CSS */
color: #21fbc9;
background-color: #21fbc9;
/* Tailwind (arbitrary) */
class="text-[#21fbc9] bg-[#21fbc9]"
/* SCSS */
$brand: #21fbc9;
/* SwiftUI */
Color(red: 0.129, green: 0.984, blue: 0.788)
/* Android */
Color.parseColor("#21fbc9")Accessibility — WCAG contrast
Aa
#21fbc9 on white: 1.34:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21fbc9 on black: 15.71:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green98.4%
Blue78.8%
CMYK percentages
Cyan86.9%
Magenta0.0%
Yellow19.9%
Key (black)1.6%
Color previews
#21fbc9 text on a black background
contrast 15.71:1
Card sample
#21fbc9 text on a white background
contrast 1.34:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21fbc9;
Background color
Panel with #21fbc9 background
background-color: #21fbc9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21fbc9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 251, 201, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 251, 201, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21fbc9; background: linear-gradient(135deg, #21fbc9, #219CFB);