#666fdf
a balanced, vivid blue · warm · closest name: royalblue
RGB
102, 111, 223
HSL
236°, 65%, 64%
CMYK
54, 50, 0, 13
Luminance
0.1952
Every format
| HEX | #666fdf |
| RGB | rgb(102, 111, 223) |
| HSL | hsl(236, 65%, 64%) |
| CMYK | cmyk(54%, 50%, 0%, 13%) |
| LAB | lab(51.3 28.1 -58.5) |
| LCH | lch(51.3 64.8 295.7) |
| OKLCH | oklch(0.591 0.168 276.5) |
Copy-ready code
/* CSS */
color: #666fdf;
background-color: #666fdf;
/* Tailwind (arbitrary) */
class="text-[#666fdf] bg-[#666fdf]"
/* SCSS */
$brand: #666fdf;
/* SwiftUI */
Color(red: 0.400, green: 0.435, blue: 0.875)
/* Android */
Color.parseColor("#666fdf")Accessibility — WCAG contrast
Aa
#666fdf on white: 4.28:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#666fdf on black: 4.90:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green43.5%
Blue87.5%
CMYK percentages
Cyan54.3%
Magenta50.2%
Yellow0.0%
Key (black)12.5%
Color previews
#666fdf text on a black background
contrast 4.90:1
Card sample
#666fdf text on a white background
contrast 4.28:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #666fdf;
Background color
Panel with #666fdf background
background-color: #666fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #666fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 111, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 111, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #666fdf; background: linear-gradient(135deg, #666fdf, #AE66DF);