#3f00fd
a balanced, electric blue · warm · closest name: blue
RGB
63, 0, 253
HSL
255°, 100%, 50%
CMYK
75, 100, 0, 1
Luminance
0.0815
Every format
| HEX | #3f00fd |
| RGB | rgb(63, 0, 253) |
| HSL | hsl(255, 100%, 50%) |
| CMYK | cmyk(75%, 100%, 0%, 1%) |
| LAB | lab(34.3 79.5 -103.4) |
| LCH | lch(34.3 130.4 307.6) |
| OKLCH | oklch(0.471 0.299 273.7) |
Copy-ready code
/* CSS */
color: #3f00fd;
background-color: #3f00fd;
/* Tailwind (arbitrary) */
class="text-[#3f00fd] bg-[#3f00fd]"
/* SCSS */
$brand: #3f00fd;
/* SwiftUI */
Color(red: 0.247, green: 0.000, blue: 0.992)
/* Android */
Color.parseColor("#3f00fd")Accessibility — WCAG contrast
Aa
#3f00fd on white: 7.99:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f00fd on black: 2.63:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green0.0%
Blue99.2%
CMYK percentages
Cyan75.1%
Magenta100.0%
Yellow0.0%
Key (black)0.8%
Color previews
#3f00fd text on a black background
contrast 2.63:1
Card sample
#3f00fd text on a white background
contrast 7.99:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f00fd;
Background color
Panel with #3f00fd background
background-color: #3f00fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f00fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 0, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 0, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f00fd; background: linear-gradient(135deg, #3f00fd, #E700FD);