#3f4cf8
a balanced, electric blue · warm · closest name: slateblue
RGB
63, 76, 248
HSL
236°, 93%, 61%
CMYK
75, 69, 0, 3
Luminance
0.1300
Every format
| HEX | #3f4cf8 |
| RGB | rgb(63, 76, 248) |
| HSL | hsl(236, 93%, 61%) |
| CMYK | cmyk(75%, 69%, 0%, 3%) |
| LAB | lab(42.8 51.7 -86.5) |
| LCH | lch(42.8 100.8 300.9) |
| OKLCH | oklch(0.528 0.250 270.9) |
Copy-ready code
/* CSS */
color: #3f4cf8;
background-color: #3f4cf8;
/* Tailwind (arbitrary) */
class="text-[#3f4cf8] bg-[#3f4cf8]"
/* SCSS */
$brand: #3f4cf8;
/* SwiftUI */
Color(red: 0.247, green: 0.298, blue: 0.973)
/* Android */
Color.parseColor("#3f4cf8")Accessibility — WCAG contrast
Aa
#3f4cf8 on white: 5.83:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f4cf8 on black: 3.60:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green29.8%
Blue97.3%
CMYK percentages
Cyan74.6%
Magenta69.4%
Yellow0.0%
Key (black)2.7%
Color previews
#3f4cf8 text on a black background
contrast 3.60:1
Card sample
#3f4cf8 text on a white background
contrast 5.83:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4cf8;
Background color
Panel with #3f4cf8 background
background-color: #3f4cf8;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4cf8;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 76, 248, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 76, 248, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4cf8; background: linear-gradient(135deg, #3f4cf8, #AD3FF8);