#042b21
a deep, electric cyan · cool · closest name: darkslategray
RGB
4, 43, 33
HSL
165°, 83%, 9%
CMYK
91, 0, 23, 83
Luminance
0.0186
Every format
| HEX | #042b21 |
| RGB | rgb(4, 43, 33) |
| HSL | hsl(165, 83%, 9%) |
| CMYK | cmyk(91%, 0%, 23%, 83%) |
| LAB | lab(14.8 -16.5 2.7) |
| LCH | lch(14.8 16.7 170.7) |
| OKLCH | oklch(0.259 0.047 171.6) |
Copy-ready code
/* CSS */
color: #042b21;
background-color: #042b21;
/* Tailwind (arbitrary) */
class="text-[#042b21] bg-[#042b21]"
/* SCSS */
$brand: #042b21;
/* SwiftUI */
Color(red: 0.016, green: 0.169, blue: 0.129)
/* Android */
Color.parseColor("#042b21")Accessibility — WCAG contrast
Aa
#042b21 on white: 15.30:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042b21 on black: 1.37:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green16.9%
Blue12.9%
CMYK percentages
Cyan90.7%
Magenta0.0%
Yellow23.3%
Key (black)83.1%
Color previews
#042b21 text on a black background
contrast 1.37:1
Card sample
#042b21 text on a white background
contrast 15.30:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042b21;
Background color
Panel with #042b21 background
background-color: #042b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 43, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 43, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042b21; background: linear-gradient(135deg, #042b21, #041B2B);