#21ddfb
a balanced, electric cyan · cool · closest name: skyblue
RGB
33, 221, 251
HSL
188°, 97%, 56%
CMYK
87, 12, 0, 2
Luminance
0.5900
Every format
| HEX | #21ddfb |
| RGB | rgb(33, 221, 251) |
| HSL | hsl(188, 97%, 56%) |
| CMYK | cmyk(87%, 12%, 0%, 2%) |
| LAB | lab(81.3 -32.9 -26.9) |
| LCH | lch(81.3 42.5 219.2) |
| OKLCH | oklch(0.826 0.140 212.4) |
Copy-ready code
/* CSS */
color: #21ddfb;
background-color: #21ddfb;
/* Tailwind (arbitrary) */
class="text-[#21ddfb] bg-[#21ddfb]"
/* SCSS */
$brand: #21ddfb;
/* SwiftUI */
Color(red: 0.129, green: 0.867, blue: 0.984)
/* Android */
Color.parseColor("#21ddfb")Accessibility — WCAG contrast
Aa
#21ddfb on white: 1.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21ddfb on black: 12.80:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green86.7%
Blue98.4%
CMYK percentages
Cyan86.9%
Magenta12.0%
Yellow0.0%
Key (black)1.6%
Color previews
#21ddfb text on a black background
contrast 12.80:1
Card sample
#21ddfb text on a white background
contrast 1.64:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21ddfb;
Background color
Panel with #21ddfb background
background-color: #21ddfb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21ddfb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 221, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 221, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21ddfb; background: linear-gradient(135deg, #21ddfb, #214CFB);