#101721
a deep, soft blue · cool · closest name: black
RGB
16, 23, 33
HSL
215°, 35%, 10%
CMYK
52, 30, 0, 87
Luminance
0.0083
Every format
| HEX | #101721 |
| RGB | rgb(16, 23, 33) |
| HSL | hsl(215, 35%, 10%) |
| CMYK | cmyk(52%, 30%, 0%, 87%) |
| LAB | lab(7.5 0.1 -8.0) |
| LCH | lch(7.5 8.0 270.9) |
| OKLCH | oklch(0.203 0.023 257.3) |
Copy-ready code
/* CSS */
color: #101721;
background-color: #101721;
/* Tailwind (arbitrary) */
class="text-[#101721] bg-[#101721]"
/* SCSS */
$brand: #101721;
/* SwiftUI */
Color(red: 0.063, green: 0.090, blue: 0.129)
/* Android */
Color.parseColor("#101721")Accessibility — WCAG contrast
Aa
#101721 on white: 18.00:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#101721 on black: 1.17:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red6.3%
Green9.0%
Blue12.9%
CMYK percentages
Cyan51.5%
Magenta30.3%
Yellow0.0%
Key (black)87.1%
Color previews
#101721 text on a black background
contrast 1.17:1
Card sample
#101721 text on a white background
contrast 18.00:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #101721;
Background color
Panel with #101721 background
background-color: #101721;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #101721;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(16, 23, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(16, 23, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #101721; background: linear-gradient(135deg, #101721, #141021);