#3964fd
a balanced, electric blue · warm · closest name: royalblue
RGB
57, 100, 253
HSL
227°, 98%, 61%
CMYK
78, 61, 0, 1
Luminance
0.1708
Every format
| HEX | #3964fd |
| RGB | rgb(57, 100, 253) |
| HSL | hsl(227, 98%, 61%) |
| CMYK | cmyk(78%, 61%, 0%, 1%) |
| LAB | lab(48.4 38.5 -80.1) |
| LCH | lch(48.4 88.9 295.7) |
| OKLCH | oklch(0.569 0.232 266.6) |
Copy-ready code
/* CSS */
color: #3964fd;
background-color: #3964fd;
/* Tailwind (arbitrary) */
class="text-[#3964fd] bg-[#3964fd]"
/* SCSS */
$brand: #3964fd;
/* SwiftUI */
Color(red: 0.224, green: 0.392, blue: 0.992)
/* Android */
Color.parseColor("#3964fd")Accessibility — WCAG contrast
Aa
#3964fd on white: 4.76:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#3964fd on black: 4.42:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green39.2%
Blue99.2%
CMYK percentages
Cyan77.5%
Magenta60.5%
Yellow0.0%
Key (black)0.8%
Color previews
#3964fd text on a black background
contrast 4.42:1
Card sample
#3964fd text on a white background
contrast 4.76:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3964fd;
Background color
Panel with #3964fd background
background-color: #3964fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3964fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 100, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 100, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3964fd; background: linear-gradient(135deg, #3964fd, #9139FD);