#666fff
a light, electric blue · warm · closest name: royalblue
RGB
102, 111, 255
HSL
237°, 100%, 70%
CMYK
60, 57, 0, 0
Luminance
0.2141
Every format
| HEX | #666fff |
| RGB | rgb(102, 111, 255) |
| HSL | hsl(237, 100%, 70%) |
| CMYK | cmyk(60%, 57%, 0%, 0%) |
| LAB | lab(53.4 38.3 -72.9) |
| LCH | lch(53.4 82.3 297.7) |
| OKLCH | oklch(0.614 0.210 275.6) |
Copy-ready code
/* CSS */
color: #666fff;
background-color: #666fff;
/* Tailwind (arbitrary) */
class="text-[#666fff] bg-[#666fff]"
/* SCSS */
$brand: #666fff;
/* SwiftUI */
Color(red: 0.400, green: 0.435, blue: 1.000)
/* Android */
Color.parseColor("#666fff")Accessibility — WCAG contrast
Aa
#666fff on white: 3.98:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#666fff on black: 5.28:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green43.5%
Blue100.0%
CMYK percentages
Cyan60.0%
Magenta56.5%
Yellow0.0%
Key (black)0.0%
Color previews
#666fff text on a black background
contrast 5.28:1
Card sample
#666fff text on a white background
contrast 3.98:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #666fff;
Background color
Panel with #666fff background
background-color: #666fff;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #666fff;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 111, 255, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 111, 255, 0.45);
Border & gradient
Gradient panel
border: 3px solid #666fff; background: linear-gradient(135deg, #666fff, #C366FF);