#3f55ff
a balanced, electric blue · warm · closest name: royalblue
RGB
63, 85, 255
HSL
233°, 100%, 62%
CMYK
75, 67, 0, 0
Luminance
0.1477
Every format
| HEX | #3f55ff |
| RGB | rgb(63, 85, 255) |
| HSL | hsl(233, 100%, 62%) |
| CMYK | cmyk(75%, 67%, 0%, 0%) |
| LAB | lab(45.3 48.8 -86.2) |
| LCH | lch(45.3 99.1 299.5) |
| OKLCH | oklch(0.548 0.249 269.8) |
Copy-ready code
/* CSS */
color: #3f55ff;
background-color: #3f55ff;
/* Tailwind (arbitrary) */
class="text-[#3f55ff] bg-[#3f55ff]"
/* SCSS */
$brand: #3f55ff;
/* SwiftUI */
Color(red: 0.247, green: 0.333, blue: 1.000)
/* Android */
Color.parseColor("#3f55ff")Accessibility — WCAG contrast
Aa
#3f55ff on white: 5.31:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3f55ff on black: 3.95:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red24.7%
Green33.3%
Blue100.0%
CMYK percentages
Cyan75.3%
Magenta66.7%
Yellow0.0%
Key (black)0.0%
Color previews
#3f55ff text on a black background
contrast 3.95:1
Card sample
#3f55ff text on a white background
contrast 5.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3f55ff;
Background color
Panel with #3f55ff background
background-color: #3f55ff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3f55ff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(63, 85, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(63, 85, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3f55ff; background: linear-gradient(135deg, #3f55ff, #A93FFF);