#397cfd
a balanced, electric blue · cool · closest name: royalblue
RGB
57, 124, 253
HSL
220°, 98%, 61%
CMYK
78, 51, 0, 1
Luminance
0.2238
Every format
| HEX | #397cfd |
| RGB | rgb(57, 124, 253) |
| HSL | hsl(220, 98%, 61%) |
| CMYK | cmyk(78%, 51%, 0%, 1%) |
| LAB | lab(54.4 23.6 -70.3) |
| LCH | lch(54.4 74.1 288.6) |
| OKLCH | oklch(0.615 0.204 261.8) |
Copy-ready code
/* CSS */
color: #397cfd;
background-color: #397cfd;
/* Tailwind (arbitrary) */
class="text-[#397cfd] bg-[#397cfd]"
/* SCSS */
$brand: #397cfd;
/* SwiftUI */
Color(red: 0.224, green: 0.486, blue: 0.992)
/* Android */
Color.parseColor("#397cfd")Accessibility — WCAG contrast
Aa
#397cfd on white: 3.84:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#397cfd on black: 5.48:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green48.6%
Blue99.2%
CMYK percentages
Cyan77.5%
Magenta51.0%
Yellow0.0%
Key (black)0.8%
Color previews
#397cfd text on a black background
contrast 5.48:1
Card sample
#397cfd text on a white background
contrast 3.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #397cfd;
Background color
Panel with #397cfd background
background-color: #397cfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #397cfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 124, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 124, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #397cfd; background: linear-gradient(135deg, #397cfd, #7939FD);