#663dfb
a balanced, electric blue · warm · closest name: blue
RGB
102, 61, 251
HSL
253°, 96%, 61%
CMYK
59, 76, 0, 2
Luminance
0.1313
Every format
| HEX | #663dfb |
| RGB | rgb(102, 61, 251) |
| HSL | hsl(253, 96%, 61%) |
| CMYK | cmyk(59%, 76%, 0%, 2%) |
| LAB | lab(43.0 64.3 -87.8) |
| LCH | lch(43.0 108.8 306.2) |
| OKLCH | oklch(0.537 0.260 283.2) |
Copy-ready code
/* CSS */
color: #663dfb;
background-color: #663dfb;
/* Tailwind (arbitrary) */
class="text-[#663dfb] bg-[#663dfb]"
/* SCSS */
$brand: #663dfb;
/* SwiftUI */
Color(red: 0.400, green: 0.239, blue: 0.984)
/* Android */
Color.parseColor("#663dfb")Accessibility — WCAG contrast
Aa
#663dfb on white: 5.79:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#663dfb on black: 3.63:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green23.9%
Blue98.4%
CMYK percentages
Cyan59.4%
Magenta75.7%
Yellow0.0%
Key (black)1.6%
Color previews
#663dfb text on a black background
contrast 3.63:1
Card sample
#663dfb text on a white background
contrast 5.79:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #663dfb;
Background color
Panel with #663dfb background
background-color: #663dfb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #663dfb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 61, 251, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 61, 251, 0.45);
Border & gradient
Gradient panel
border: 3px solid #663dfb; background: linear-gradient(135deg, #663dfb, #E53DFB);