#21dfad
a balanced, vivid cyan · cool · closest name: aquamarine
RGB
33, 223, 173
HSL
164°, 75%, 50%
CMYK
85, 0, 22, 13
Luminance
0.5612
Every format
| HEX | #21dfad |
| RGB | rgb(33, 223, 173) |
| HSL | hsl(164, 75%, 50%) |
| CMYK | cmyk(85%, 0%, 22%, 13%) |
| LAB | lab(79.7 -55.5 12.2) |
| LCH | lch(79.7 56.9 167.6) |
| OKLCH | oklch(0.805 0.157 168.6) |
Copy-ready code
/* CSS */
color: #21dfad;
background-color: #21dfad;
/* Tailwind (arbitrary) */
class="text-[#21dfad] bg-[#21dfad]"
/* SCSS */
$brand: #21dfad;
/* SwiftUI */
Color(red: 0.129, green: 0.875, blue: 0.678)
/* Android */
Color.parseColor("#21dfad")Accessibility — WCAG contrast
Aa
#21dfad on white: 1.72:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#21dfad on black: 12.22:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green87.5%
Blue67.8%
CMYK percentages
Cyan85.2%
Magenta0.0%
Yellow22.4%
Key (black)12.5%
Color previews
#21dfad text on a black background
contrast 12.22:1
Card sample
#21dfad text on a white background
contrast 1.72:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #21dfad;
Background color
Panel with #21dfad background
background-color: #21dfad;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #21dfad;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 223, 173, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 223, 173, 0.45);
Border & gradient
Gradient panel
border: 3px solid #21dfad; background: linear-gradient(135deg, #21dfad, #2192DF);