#3f4fd1
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 79, 209
HSL
233°, 61%, 53%
CMYK
70, 62, 0, 18
Luminance
0.1125
Every format
| HEX | #3f4fd1 |
| RGB | rgb(63, 79, 209) |
| HSL | hsl(233, 61%, 53%) |
| CMYK | cmyk(70%, 62%, 0%, 18%) |
| LAB | lab(40.0 36.7 -68.9) |
| LCH | lch(40.0 78.0 298.0) |
| OKLCH | oklch(0.497 0.199 271.6) |
Copy-ready code
/* CSS */
color: #3f4fd1;
background-color: #3f4fd1;
/* Tailwind (arbitrary) */
class="text-[#3f4fd1] bg-[#3f4fd1]"
/* SCSS */
$brand: #3f4fd1;
/* SwiftUI */
Color(red: 0.247, green: 0.310, blue: 0.820)
/* Android */
Color.parseColor("#3f4fd1")Accessibility — WCAG contrast
Aa
#3f4fd1 on white: 6.46:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f4fd1 on black: 3.25:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green31.0%
Blue82.0%
CMYK percentages
Cyan69.9%
Magenta62.2%
Yellow0.0%
Key (black)18.0%
Color previews
#3f4fd1 text on a black background
contrast 3.25:1
Card sample
#3f4fd1 text on a white background
contrast 6.46:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4fd1;
Background color
Panel with #3f4fd1 background
background-color: #3f4fd1;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4fd1;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 79, 209, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 79, 209, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4fd1; background: linear-gradient(135deg, #3f4fd1, #903FD1);