#100f21
a deep, soft blue · warm · closest name: black
RGB
16, 15, 33
HSL
243°, 38%, 9%
CMYK
52, 55, 0, 87
Luminance
0.0056
Every format
| HEX | #100f21 |
| RGB | rgb(16, 15, 33) |
| HSL | hsl(243, 38%, 9%) |
| CMYK | cmyk(52%, 55%, 0%, 87%) |
| LAB | lab(5.1 5.1 -11.7) |
| LCH | lch(5.1 12.8 293.6) |
| OKLCH | oklch(0.180 0.036 284.6) |
Copy-ready code
/* CSS */
color: #100f21;
background-color: #100f21;
/* Tailwind (arbitrary) */
class="text-[#100f21] bg-[#100f21]"
/* SCSS */
$brand: #100f21;
/* SwiftUI */
Color(red: 0.063, green: 0.059, blue: 0.129)
/* Android */
Color.parseColor("#100f21")Accessibility — WCAG contrast
Aa
#100f21 on white: 18.88:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#100f21 on black: 1.11:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red6.3%
Green5.9%
Blue12.9%
CMYK percentages
Cyan51.5%
Magenta54.5%
Yellow0.0%
Key (black)87.1%
Color previews
#100f21 text on a black background
contrast 1.11:1
Card sample
#100f21 text on a white background
contrast 18.88:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #100f21;
Background color
Panel with #100f21 background
background-color: #100f21;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #100f21;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(16, 15, 33, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(16, 15, 33, 0.45);
Border & gradient
Gradient panel
border: 3px solid #100f21; background: linear-gradient(135deg, #100f21, #1C0F21);