#0100cf
a dark, electric blue · warm · closest name: blue
RGB
1, 0, 207
HSL
240°, 100%, 41%
CMYK
100, 100, 0, 19
Luminance
0.0451
Every format
| HEX | #0100cf |
| RGB | rgb(1, 0, 207) |
| HSL | hsl(240, 100%, 41%) |
| CMYK | cmyk(100%, 100%, 0%, 19%) |
| LAB | lab(25.3 67.7 -92.1) |
| LCH | lch(25.3 114.3 306.3) |
| OKLCH | oklch(0.386 0.268 264.2) |
Copy-ready code
/* CSS */
color: #0100cf;
background-color: #0100cf;
/* Tailwind (arbitrary) */
class="text-[#0100cf] bg-[#0100cf]"
/* SCSS */
$brand: #0100cf;
/* SwiftUI */
Color(red: 0.004, green: 0.000, blue: 0.812)
/* Android */
Color.parseColor("#0100cf")Accessibility — WCAG contrast
Aa
#0100cf on white: 11.04:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#0100cf on black: 1.90:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red0.4%
Green0.0%
Blue81.2%
CMYK percentages
Cyan99.5%
Magenta100.0%
Yellow0.0%
Key (black)18.8%
Color previews
#0100cf text on a black background
contrast 1.90:1
Card sample
#0100cf text on a white background
contrast 11.04:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #0100cf;
Background color
Panel with #0100cf background
background-color: #0100cf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #0100cf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(1, 0, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(1, 0, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #0100cf; background: linear-gradient(135deg, #0100cf, #8B00CF);