#010b21
a deep, electric blue · cool · closest name: black
RGB
1, 11, 33
HSL
221°, 94%, 7%
CMYK
97, 67, 0, 87
Luminance
0.0036
Every format
| HEX | #010b21 |
| RGB | rgb(1, 11, 33) |
| HSL | hsl(221, 94%, 7%) |
| CMYK | cmyk(97%, 67%, 0%, 87%) |
| LAB | lab(3.2 2.8 -14.7) |
| LCH | lch(3.2 14.9 280.8) |
| OKLCH | oklch(0.154 0.051 258.2) |
Copy-ready code
/* CSS */
color: #010b21;
background-color: #010b21;
/* Tailwind (arbitrary) */
class="text-[#010b21] bg-[#010b21]"
/* SCSS */
$brand: #010b21;
/* SwiftUI */
Color(red: 0.004, green: 0.043, blue: 0.129)
/* Android */
Color.parseColor("#010b21")Accessibility — WCAG contrast
Aa
#010b21 on white: 19.61:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#010b21 on black: 1.07:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.4%
Green4.3%
Blue12.9%
CMYK percentages
Cyan97.0%
Magenta66.7%
Yellow0.0%
Key (black)87.1%
Color previews
#010b21 text on a black background
contrast 1.07:1
Card sample
#010b21 text on a white background
contrast 19.61:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #010b21;
Background color
Panel with #010b21 background
background-color: #010b21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #010b21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(1, 11, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(1, 11, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #010b21; background: linear-gradient(135deg, #010b21, #0C0121);