#3f4cef
a balanced, electric blue · warm · closest name: slateblue
RGB
63, 76, 239
HSL
236°, 85%, 59%
CMYK
74, 68, 0, 6
Luminance
0.1246
Every format
| HEX | #3f4cef |
| RGB | rgb(63, 76, 239) |
| HSL | hsl(236, 85%, 59%) |
| CMYK | cmyk(74%, 68%, 0%, 6%) |
| LAB | lab(41.9 48.7 -82.8) |
| LCH | lch(41.9 96.1 300.5) |
| OKLCH | oklch(0.519 0.240 271.2) |
Copy-ready code
/* CSS */
color: #3f4cef;
background-color: #3f4cef;
/* Tailwind (arbitrary) */
class="text-[#3f4cef] bg-[#3f4cef]"
/* SCSS */
$brand: #3f4cef;
/* SwiftUI */
Color(red: 0.247, green: 0.298, blue: 0.937)
/* Android */
Color.parseColor("#3f4cef")Accessibility — WCAG contrast
Aa
#3f4cef on white: 6.01:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f4cef on black: 3.49:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green29.8%
Blue93.7%
CMYK percentages
Cyan73.6%
Magenta68.2%
Yellow0.0%
Key (black)6.3%
Color previews
#3f4cef text on a black background
contrast 3.49:1
Card sample
#3f4cef text on a white background
contrast 6.01:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f4cef;
Background color
Panel with #3f4cef background
background-color: #3f4cef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f4cef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 76, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 76, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f4cef; background: linear-gradient(135deg, #3f4cef, #A73FEF);