#0a1f21
a deep, vivid cyan · cool · closest name: black
RGB
10, 31, 33
HSL
185°, 54%, 8%
CMYK
70, 6, 0, 87
Luminance
0.0115
Every format
| HEX | #0a1f21 |
| RGB | rgb(10, 31, 33) |
| HSL | hsl(185, 54%, 8%) |
| CMYK | cmyk(70%, 6%, 0%, 87%) |
| LAB | lab(10.2 -7.6 -3.9) |
| LCH | lch(10.2 8.6 207.3) |
| OKLCH | oklch(0.223 0.027 203.7) |
Copy-ready code
/* CSS */
color: #0a1f21;
background-color: #0a1f21;
/* Tailwind (arbitrary) */
class="text-[#0a1f21] bg-[#0a1f21]"
/* SCSS */
$brand: #0a1f21;
/* SwiftUI */
Color(red: 0.039, green: 0.122, blue: 0.129)
/* Android */
Color.parseColor("#0a1f21")Accessibility — WCAG contrast
Aa
#0a1f21 on white: 17.06:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0a1f21 on black: 1.23:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red3.9%
Green12.2%
Blue12.9%
CMYK percentages
Cyan69.7%
Magenta6.1%
Yellow0.0%
Key (black)87.1%
Color previews
#0a1f21 text on a black background
contrast 1.23:1
Card sample
#0a1f21 text on a white background
contrast 17.06:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0a1f21;
Background color
Panel with #0a1f21 background
background-color: #0a1f21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0a1f21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(10, 31, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(10, 31, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0a1f21; background: linear-gradient(135deg, #0a1f21, #0A1021);