#577fef
a balanced, electric blue · cool · closest name: royalblue
RGB
87, 127, 239
HSL
224°, 83%, 64%
CMYK
64, 47, 0, 6
Luminance
0.2344
Every format
| HEX | #577fef |
| RGB | rgb(87, 127, 239) |
| HSL | hsl(224, 83%, 64%) |
| CMYK | cmyk(64%, 47%, 0%, 6%) |
| LAB | lab(55.5 20.8 -60.7) |
| LCH | lch(55.5 64.1 288.9) |
| OKLCH | oklch(0.624 0.174 266.6) |
Copy-ready code
/* CSS */
color: #577fef;
background-color: #577fef;
/* Tailwind (arbitrary) */
class="text-[#577fef] bg-[#577fef]"
/* SCSS */
$brand: #577fef;
/* SwiftUI */
Color(red: 0.341, green: 0.498, blue: 0.937)
/* Android */
Color.parseColor("#577fef")Accessibility — WCAG contrast
Aa
#577fef on white: 3.69:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#577fef on black: 5.69:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red34.1%
Green49.8%
Blue93.7%
CMYK percentages
Cyan63.6%
Magenta46.9%
Yellow0.0%
Key (black)6.3%
Color previews
#577fef text on a black background
contrast 5.69:1
Card sample
#577fef text on a white background
contrast 3.69:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #577fef;
Background color
Panel with #577fef background
background-color: #577fef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #577fef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(87, 127, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(87, 127, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #577fef; background: linear-gradient(135deg, #577fef, #9457EF);