#397df8
a balanced, electric blue · cool · closest name: royalblue
RGB
57, 125, 248
HSL
219°, 93%, 60%
CMYK
77, 50, 0, 3
Luminance
0.2231
Every format
| HEX | #397df8 |
| RGB | rgb(57, 125, 248) |
| HSL | hsl(219, 93%, 60%) |
| CMYK | cmyk(77%, 50%, 0%, 3%) |
| LAB | lab(54.4 21.1 -67.6) |
| LCH | lch(54.4 70.8 287.4) |
| OKLCH | oklch(0.614 0.197 261.1) |
Copy-ready code
/* CSS */
color: #397df8;
background-color: #397df8;
/* Tailwind (arbitrary) */
class="text-[#397df8] bg-[#397df8]"
/* SCSS */
$brand: #397df8;
/* SwiftUI */
Color(red: 0.224, green: 0.490, blue: 0.973)
/* Android */
Color.parseColor("#397df8")Accessibility — WCAG contrast
Aa
#397df8 on white: 3.84:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#397df8 on black: 5.46:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green49.0%
Blue97.3%
CMYK percentages
Cyan77.0%
Magenta49.6%
Yellow0.0%
Key (black)2.7%
Color previews
#397df8 text on a black background
contrast 5.46:1
Card sample
#397df8 text on a white background
contrast 3.84:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #397df8;
Background color
Panel with #397df8 background
background-color: #397df8;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #397df8;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 125, 248, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 125, 248, 0.45);
Border & gradient
Gradient panel
border: 3px solid #397df8; background: linear-gradient(135deg, #397df8, #7439F8);