#100c21
a deep, vivid blue · warm · closest name: black
RGB
16, 12, 33
HSL
251°, 47%, 9%
CMYK
52, 64, 0, 87
Luminance
0.0048
Every format
| HEX | #100c21 |
| RGB | rgb(16, 12, 33) |
| HSL | hsl(251, 47%, 9%) |
| CMYK | cmyk(52%, 64%, 0%, 87%) |
| LAB | lab(4.4 6.6 -12.8) |
| LCH | lch(4.4 14.4 297.2) |
| OKLCH | oklch(0.173 0.043 290.0) |
Copy-ready code
/* CSS */
color: #100c21;
background-color: #100c21;
/* Tailwind (arbitrary) */
class="text-[#100c21] bg-[#100c21]"
/* SCSS */
$brand: #100c21;
/* SwiftUI */
Color(red: 0.063, green: 0.047, blue: 0.129)
/* Android */
Color.parseColor("#100c21")Accessibility — WCAG contrast
Aa
#100c21 on white: 19.15:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#100c21 on black: 1.10:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red6.3%
Green4.7%
Blue12.9%
CMYK percentages
Cyan51.5%
Magenta63.6%
Yellow0.0%
Key (black)87.1%
Color previews
#100c21 text on a black background
contrast 1.10:1
Card sample
#100c21 text on a white background
contrast 19.15:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #100c21;
Background color
Panel with #100c21 background
background-color: #100c21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #100c21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(16, 12, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(16, 12, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #100c21; background: linear-gradient(135deg, #100c21, #1E0C21);