#213939
a deep, soft cyan · cool · closest name: darkslategray
RGB
33, 57, 57
HSL
180°, 27%, 18%
CMYK
42, 0, 0, 78
Luminance
0.0354
Every format
| HEX | #213939 |
| RGB | rgb(33, 57, 57) |
| HSL | hsl(180, 27%, 18%) |
| CMYK | cmyk(42%, 0%, 0%, 78%) |
| LAB | lab(22.1 -9.3 -3.0) |
| LCH | lch(22.1 9.8 197.7) |
| OKLCH | oklch(0.325 0.030 195.8) |
Copy-ready code
/* CSS */
color: #213939;
background-color: #213939;
/* Tailwind (arbitrary) */
class="text-[#213939] bg-[#213939]"
/* SCSS */
$brand: #213939;
/* SwiftUI */
Color(red: 0.129, green: 0.224, blue: 0.224)
/* Android */
Color.parseColor("#213939")Accessibility — WCAG contrast
Aa
#213939 on white: 12.29:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#213939 on black: 1.71:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green22.4%
Blue22.4%
CMYK percentages
Cyan42.1%
Magenta0.0%
Yellow0.0%
Key (black)77.6%
Color previews
#213939 text on a black background
contrast 1.71:1
Card sample
#213939 text on a white background
contrast 12.29:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #213939;
Background color
Panel with #213939 background
background-color: #213939;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #213939;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 57, 57, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 57, 57, 0.45);
Border & gradient
Gradient panel
border: 3px solid #213939; background: linear-gradient(135deg, #213939, #212939);