#577ef1
a balanced, electric blue · cool · closest name: royalblue
RGB
87, 126, 241
HSL
225°, 85%, 64%
CMYK
64, 48, 0, 6
Luminance
0.2330
Every format
| HEX | #577ef1 |
| RGB | rgb(87, 126, 241) |
| HSL | hsl(225, 85%, 64%) |
| CMYK | cmyk(64%, 48%, 0%, 6%) |
| LAB | lab(55.4 22.1 -62.0) |
| LCH | lch(55.4 65.8 289.6) |
| OKLCH | oklch(0.623 0.178 267.1) |
Copy-ready code
/* CSS */
color: #577ef1;
background-color: #577ef1;
/* Tailwind (arbitrary) */
class="text-[#577ef1] bg-[#577ef1]"
/* SCSS */
$brand: #577ef1;
/* SwiftUI */
Color(red: 0.341, green: 0.494, blue: 0.945)
/* Android */
Color.parseColor("#577ef1")Accessibility — WCAG contrast
Aa
#577ef1 on white: 3.71:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#577ef1 on black: 5.66:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red34.1%
Green49.4%
Blue94.5%
CMYK percentages
Cyan63.9%
Magenta47.7%
Yellow0.0%
Key (black)5.5%
Color previews
#577ef1 text on a black background
contrast 5.66:1
Card sample
#577ef1 text on a white background
contrast 3.71:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #577ef1;
Background color
Panel with #577ef1 background
background-color: #577ef1;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #577ef1;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(87, 126, 241, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(87, 126, 241, 0.45);
Border & gradient
Gradient panel
border: 3px solid #577ef1; background: linear-gradient(135deg, #577ef1, #9757F1);