#042a21
a deep, electric cyan · cool · closest name: darkslategray
RGB
4, 42, 33
HSL
166°, 83%, 9%
CMYK
91, 0, 21, 84
Luminance
0.0179
Every format
| HEX | #042a21 |
| RGB | rgb(4, 42, 33) |
| HSL | hsl(166, 83%, 9%) |
| CMYK | cmyk(91%, 0%, 21%, 84%) |
| LAB | lab(14.3 -16.0 2.1) |
| LCH | lch(14.3 16.1 172.5) |
| OKLCH | oklch(0.256 0.045 173.2) |
Copy-ready code
/* CSS */
color: #042a21;
background-color: #042a21;
/* Tailwind (arbitrary) */
class="text-[#042a21] bg-[#042a21]"
/* SCSS */
$brand: #042a21;
/* SwiftUI */
Color(red: 0.016, green: 0.165, blue: 0.129)
/* Android */
Color.parseColor("#042a21")Accessibility — WCAG contrast
Aa
#042a21 on white: 15.46:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#042a21 on black: 1.36:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green16.5%
Blue12.9%
CMYK percentages
Cyan90.5%
Magenta0.0%
Yellow21.4%
Key (black)83.5%
Color previews
#042a21 text on a black background
contrast 1.36:1
Card sample
#042a21 text on a white background
contrast 15.46:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #042a21;
Background color
Panel with #042a21 background
background-color: #042a21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #042a21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 42, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 42, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #042a21; background: linear-gradient(135deg, #042a21, #041A2A);