#3f41ac
a balanced, vivid blue · warm · closest name: slateblue
RGB
63, 65, 172
HSL
239°, 46%, 46%
CMYK
63, 62, 0, 33
Luminance
0.0782
Every format
| HEX | #3f41ac |
| RGB | rgb(63, 65, 172) |
| HSL | hsl(239, 46%, 46%) |
| CMYK | cmyk(63%, 62%, 0%, 33%) |
| LAB | lab(33.6 32.7 -57.6) |
| LCH | lch(33.6 66.3 299.6) |
| OKLCH | oklch(0.441 0.167 276.3) |
Copy-ready code
/* CSS */
color: #3f41ac;
background-color: #3f41ac;
/* Tailwind (arbitrary) */
class="text-[#3f41ac] bg-[#3f41ac]"
/* SCSS */
$brand: #3f41ac;
/* SwiftUI */
Color(red: 0.247, green: 0.255, blue: 0.675)
/* Android */
Color.parseColor("#3f41ac")Accessibility — WCAG contrast
Aa
#3f41ac on white: 8.19:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3f41ac on black: 2.56:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green25.5%
Blue67.5%
CMYK percentages
Cyan63.4%
Magenta62.2%
Yellow0.0%
Key (black)32.5%
Color previews
#3f41ac text on a black background
contrast 2.56:1
Card sample
#3f41ac text on a white background
contrast 8.19:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f41ac;
Background color
Panel with #3f41ac background
background-color: #3f41ac;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f41ac;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 65, 172, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 65, 172, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f41ac; background: linear-gradient(135deg, #3f41ac, #863FAC);