#377dfd
a balanced, electric blue · cool · closest name: royalblue
RGB
55, 125, 253
HSL
219°, 98%, 60%
CMYK
78, 51, 0, 1
Luminance
0.2257
Every format
| HEX | #377dfd |
| RGB | rgb(55, 125, 253) |
| HSL | hsl(219, 98%, 60%) |
| CMYK | cmyk(78%, 51%, 0%, 1%) |
| LAB | lab(54.6 22.8 -69.9) |
| LCH | lch(54.6 73.5 288.0) |
| OKLCH | oklch(0.617 0.204 261.2) |
Copy-ready code
/* CSS */
color: #377dfd;
background-color: #377dfd;
/* Tailwind (arbitrary) */
class="text-[#377dfd] bg-[#377dfd]"
/* SCSS */
$brand: #377dfd;
/* SwiftUI */
Color(red: 0.216, green: 0.490, blue: 0.992)
/* Android */
Color.parseColor("#377dfd")Accessibility — WCAG contrast
Aa
#377dfd on white: 3.81:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#377dfd on black: 5.51:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green49.0%
Blue99.2%
CMYK percentages
Cyan78.3%
Magenta50.6%
Yellow0.0%
Key (black)0.8%
Color previews
#377dfd text on a black background
contrast 5.51:1
Card sample
#377dfd text on a white background
contrast 3.81:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #377dfd;
Background color
Panel with #377dfd background
background-color: #377dfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #377dfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 125, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 125, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #377dfd; background: linear-gradient(135deg, #377dfd, #7537FD);