#37aefd
a balanced, electric blue · cool · closest name: steelblue
RGB
55, 174, 253
HSL
204°, 98%, 60%
CMYK
78, 31, 0, 1
Luminance
0.3818
Every format
| HEX | #37aefd |
| RGB | rgb(55, 174, 253) |
| HSL | hsl(204, 98%, 60%) |
| CMYK | cmyk(78%, 31%, 0%, 1%) |
| LAB | lab(68.2 -6.3 -48.3) |
| LCH | lch(68.2 48.7 262.6) |
| OKLCH | oklch(0.722 0.154 243.0) |
Copy-ready code
/* CSS */
color: #37aefd;
background-color: #37aefd;
/* Tailwind (arbitrary) */
class="text-[#37aefd] bg-[#37aefd]"
/* SCSS */
$brand: #37aefd;
/* SwiftUI */
Color(red: 0.216, green: 0.682, blue: 0.992)
/* Android */
Color.parseColor("#37aefd")Accessibility — WCAG contrast
Aa
#37aefd on white: 2.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
Aa
#37aefd on black: 8.64:1
AA ✓ pass · AA-large ✓ · AAA ✓
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red21.6%
Green68.2%
Blue99.2%
CMYK percentages
Cyan78.3%
Magenta31.2%
Yellow0.0%
Key (black)0.8%
Color previews
#37aefd text on a black background
contrast 8.64:1
Card sample
#37aefd text on a white background
contrast 2.43:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #37aefd;
Background color
Panel with #37aefd background
background-color: #37aefd;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #37aefd;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(55, 174, 253, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(55, 174, 253, 0.45);
Border & gradient
Gradient panel
border: 3px solid #37aefd; background: linear-gradient(135deg, #37aefd, #4437FD);