#3f5def
a balanced, electric blue · warm · closest name: royalblue
RGB
63, 93, 239
HSL
230°, 85%, 59%
CMYK
74, 61, 0, 6
Luminance
0.1512
Every format
| HEX | #3f5def |
| RGB | rgb(63, 93, 239) |
| HSL | hsl(230, 85%, 59%) |
| CMYK | cmyk(74%, 61%, 0%, 6%) |
| LAB | lab(45.8 38.5 -76.5) |
| LCH | lch(45.8 85.6 296.7) |
| OKLCH | oklch(0.548 0.221 268.8) |
Copy-ready code
/* CSS */
color: #3f5def;
background-color: #3f5def;
/* Tailwind (arbitrary) */
class="text-[#3f5def] bg-[#3f5def]"
/* SCSS */
$brand: #3f5def;
/* SwiftUI */
Color(red: 0.247, green: 0.365, blue: 0.937)
/* Android */
Color.parseColor("#3f5def")Accessibility — WCAG contrast
Aa
#3f5def on white: 5.22:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f5def on black: 4.02:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green36.5%
Blue93.7%
CMYK percentages
Cyan73.6%
Magenta61.1%
Yellow0.0%
Key (black)6.3%
Color previews
#3f5def text on a black background
contrast 4.02:1
Card sample
#3f5def text on a white background
contrast 5.22:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f5def;
Background color
Panel with #3f5def background
background-color: #3f5def;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f5def;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 93, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 93, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f5def; background: linear-gradient(135deg, #3f5def, #963FEF);