#042521
a deep, electric cyan · cool · closest name: black
RGB
4, 37, 33
HSL
173°, 81%, 8%
CMYK
89, 0, 11, 86
Luminance
0.0146
Every format
| HEX | #042521 |
| RGB | rgb(4, 37, 33) |
| HSL | hsl(173, 81%, 8%) |
| CMYK | cmyk(89%, 0%, 11%, 86%) |
| LAB | lab(12.3 -13.1 -0.8) |
| LCH | lch(12.3 13.1 183.5) |
| OKLCH | oklch(0.239 0.039 183.6) |
Copy-ready code
/* CSS */
color: #042521;
background-color: #042521;
/* Tailwind (arbitrary) */
class="text-[#042521] bg-[#042521]"
/* SCSS */
$brand: #042521;
/* SwiftUI */
Color(red: 0.016, green: 0.145, blue: 0.129)
/* Android */
Color.parseColor("#042521")Accessibility — WCAG contrast
Aa
#042521 on white: 16.26:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042521 on black: 1.29:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green14.5%
Blue12.9%
CMYK percentages
Cyan89.2%
Magenta0.0%
Yellow10.8%
Key (black)85.5%
Color previews
#042521 text on a black background
contrast 1.29:1
Card sample
#042521 text on a white background
contrast 16.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042521;
Background color
Panel with #042521 background
background-color: #042521;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042521;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 37, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 37, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042521; background: linear-gradient(135deg, #042521, #041325);