#213937
a deep, soft cyan · cool · closest name: darkslategray
RGB
33, 57, 55
HSL
175°, 27%, 18%
CMYK
42, 0, 4, 78
Luminance
0.0353
Every format
| HEX | #213937 |
| RGB | rgb(33, 57, 55) |
| HSL | hsl(175, 27%, 18%) |
| CMYK | cmyk(42%, 0%, 4%, 78%) |
| LAB | lab(22.0 -9.9 -1.7) |
| LCH | lch(22.0 10.1 189.9) |
| OKLCH | oklch(0.324 0.030 189.1) |
Copy-ready code
/* CSS */
color: #213937;
background-color: #213937;
/* Tailwind (arbitrary) */
class="text-[#213937] bg-[#213937]"
/* SCSS */
$brand: #213937;
/* SwiftUI */
Color(red: 0.129, green: 0.224, blue: 0.216)
/* Android */
Color.parseColor("#213937")Accessibility — WCAG contrast
Aa
#213937 on white: 12.32:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#213937 on black: 1.71:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red12.9%
Green22.4%
Blue21.6%
CMYK percentages
Cyan42.1%
Magenta0.0%
Yellow3.5%
Key (black)77.6%
Color previews
#213937 text on a black background
contrast 1.71:1
Card sample
#213937 text on a white background
contrast 12.32:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #213937;
Background color
Panel with #213937 background
background-color: #213937;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #213937;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(33, 57, 55, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(33, 57, 55, 0.45);
Border & gradient
Gradient panel
border: 3px solid #213937; background: linear-gradient(135deg, #213937, #212B39);