#397ffd
a balanced, electric blue · cool · closest name: royalblue
RGB
57, 127, 253
HSL
219°, 98%, 61%
CMYK
78, 50, 0, 1
Luminance
0.2314
Every format
| HEX | #397ffd |
| RGB | rgb(57, 127, 253) |
| HSL | hsl(219, 98%, 61%) |
| CMYK | cmyk(78%, 50%, 0%, 1%) |
| LAB | lab(55.2 21.7 -69.0) |
| LCH | lch(55.2 72.3 287.5) |
| OKLCH | oklch(0.621 0.201 261.0) |
Copy-ready code
/* CSS */
color: #397ffd;
background-color: #397ffd;
/* Tailwind (arbitrary) */
class="text-[#397ffd] bg-[#397ffd]"
/* SCSS */
$brand: #397ffd;
/* SwiftUI */
Color(red: 0.224, green: 0.498, blue: 0.992)
/* Android */
Color.parseColor("#397ffd")Accessibility — WCAG contrast
Aa
#397ffd on white: 3.73:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#397ffd on black: 5.63:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green49.8%
Blue99.2%
CMYK percentages
Cyan77.5%
Magenta49.8%
Yellow0.0%
Key (black)0.8%
Color previews
#397ffd text on a black background
contrast 5.63:1
Card sample
#397ffd text on a white background
contrast 3.73:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #397ffd;
Background color
Panel with #397ffd background
background-color: #397ffd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #397ffd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 127, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 127, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #397ffd; background: linear-gradient(135deg, #397ffd, #7639FD);