#000f21
a deep, electric blue · cool · closest name: black
RGB
0, 15, 33
HSL
213°, 100%, 7%
CMYK
100, 55, 0, 87
Luminance
0.0045
Every format
| HEX | #000f21 |
| RGB | rgb(0, 15, 33) |
| HSL | hsl(213, 100%, 7%) |
| CMYK | cmyk(100%, 55%, 0%, 87%) |
| LAB | lab(4.1 0.7 -13.3) |
| LCH | lch(4.1 13.4 272.8) |
| OKLCH | oklch(0.165 0.046 249.1) |
Copy-ready code
/* CSS */
color: #000f21;
background-color: #000f21;
/* Tailwind (arbitrary) */
class="text-[#000f21] bg-[#000f21]"
/* SCSS */
$brand: #000f21;
/* SwiftUI */
Color(red: 0.000, green: 0.059, blue: 0.129)
/* Android */
Color.parseColor("#000f21")Accessibility — WCAG contrast
Aa
#000f21 on white: 19.26:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#000f21 on black: 1.09:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.0%
Green5.9%
Blue12.9%
CMYK percentages
Cyan100.0%
Magenta54.5%
Yellow0.0%
Key (black)87.1%
Color previews
#000f21 text on a black background
contrast 1.09:1
Card sample
#000f21 text on a white background
contrast 19.26:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #000f21;
Background color
Panel with #000f21 background
background-color: #000f21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #000f21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(0, 15, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(0, 15, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #000f21; background: linear-gradient(135deg, #000f21, #070021);