#3979fd
a balanced, electric blue · cool · closest name: royalblue
RGB
57, 121, 253
HSL
220°, 98%, 61%
CMYK
78, 52, 0, 1
Luminance
0.2164
Every format
| HEX | #3979fd |
| RGB | rgb(57, 121, 253) |
| HSL | hsl(220, 98%, 61%) |
| CMYK | cmyk(78%, 52%, 0%, 1%) |
| LAB | lab(53.6 25.4 -71.5) |
| LCH | lch(53.6 75.9 289.6) |
| OKLCH | oklch(0.609 0.208 262.5) |
Copy-ready code
/* CSS */
color: #3979fd;
background-color: #3979fd;
/* Tailwind (arbitrary) */
class="text-[#3979fd] bg-[#3979fd]"
/* SCSS */
$brand: #3979fd;
/* SwiftUI */
Color(red: 0.224, green: 0.475, blue: 0.992)
/* Android */
Color.parseColor("#3979fd")Accessibility — WCAG contrast
Aa
#3979fd on white: 3.94:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#3979fd on black: 5.33:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green47.5%
Blue99.2%
CMYK percentages
Cyan77.5%
Magenta52.2%
Yellow0.0%
Key (black)0.8%
Color previews
#3979fd text on a black background
contrast 5.33:1
Card sample
#3979fd text on a white background
contrast 3.94:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3979fd;
Background color
Panel with #3979fd background
background-color: #3979fd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3979fd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 121, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 121, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3979fd; background: linear-gradient(135deg, #3979fd, #7C39FD);