#043139
a deep, electric cyan · cool · closest name: darkslategray
RGB
4, 49, 57
HSL
189°, 87%, 12%
CMYK
93, 14, 0, 78
Luminance
0.0252
Every format
| HEX | #043139 |
| RGB | rgb(4, 49, 57) |
| HSL | hsl(189, 87%, 12%) |
| CMYK | cmyk(93%, 14%, 0%, 78%) |
| LAB | lab(18.0 -11.2 -9.3) |
| LCH | lch(18.0 14.5 219.7) |
| OKLCH | oklch(0.289 0.048 212.8) |
Copy-ready code
/* CSS */
color: #043139;
background-color: #043139;
/* Tailwind (arbitrary) */
class="text-[#043139] bg-[#043139]"
/* SCSS */
$brand: #043139;
/* SwiftUI */
Color(red: 0.016, green: 0.192, blue: 0.224)
/* Android */
Color.parseColor("#043139")Accessibility — WCAG contrast
Aa
#043139 on white: 13.97:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#043139 on black: 1.50:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red1.6%
Green19.2%
Blue22.4%
CMYK percentages
Cyan93.0%
Magenta14.0%
Yellow0.0%
Key (black)77.6%
Color previews
#043139 text on a black background
contrast 1.50:1
Card sample
#043139 text on a white background
contrast 13.97:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #043139;
Background color
Panel with #043139 background
background-color: #043139;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #043139;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(4, 49, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(4, 49, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #043139; background: linear-gradient(135deg, #043139, #040E39);