#370dfd
a balanced, electric blue · warm · closest name: blue
RGB
55, 13, 253
HSL
251°, 98%, 52%
CMYK
78, 95, 0, 1
Luminance
0.0819
Every format
| HEX | #370dfd |
| RGB | rgb(55, 13, 253) |
| HSL | hsl(251, 98%, 52%) |
| CMYK | cmyk(78%, 95%, 0%, 1%) |
| LAB | lab(34.4 77.5 -103.2) |
| LCH | lch(34.4 129.1 306.9) |
| OKLCH | oklch(0.470 0.298 271.6) |
Copy-ready code
/* CSS */
color: #370dfd;
background-color: #370dfd;
/* Tailwind (arbitrary) */
class="text-[#370dfd] bg-[#370dfd]"
/* SCSS */
$brand: #370dfd;
/* SwiftUI */
Color(red: 0.216, green: 0.051, blue: 0.992)
/* Android */
Color.parseColor("#370dfd")Accessibility — WCAG contrast
Aa
#370dfd on white: 7.96:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#370dfd on black: 2.64:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green5.1%
Blue99.2%
CMYK percentages
Cyan78.3%
Magenta94.9%
Yellow0.0%
Key (black)0.8%
Color previews
#370dfd text on a black background
contrast 2.64:1
Card sample
#370dfd text on a white background
contrast 7.96:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #370dfd;
Background color
Panel with #370dfd background
background-color: #370dfd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #370dfd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 13, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 13, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #370dfd; background: linear-gradient(135deg, #370dfd, #D70DFD);