#665acf
a balanced, vivid blue · warm · “slateblue”
RGB
102, 90, 207
HSL
246°, 55%, 58%
CMYK
51, 57, 0, 19
Luminance
0.1464
Every format
| HEX | #665acf |
| RGB | rgb(102, 90, 207) |
| HSL | hsl(246, 55%, 58%) |
| CMYK | cmyk(51%, 57%, 0%, 19%) |
| LAB | lab(45.1 35.8 -59.3) |
| LCH | lch(45.1 69.2 301.1) |
| OKLCH | oklch(0.542 0.174 283.6) |
Copy-ready code
/* CSS */
color: #665acf;
background-color: #665acf;
/* Tailwind (arbitrary) */
class="text-[#665acf] bg-[#665acf]"
/* SCSS */
$brand: #665acf;
/* SwiftUI */
Color(red: 0.400, green: 0.353, blue: 0.812)
/* Android */
Color.parseColor("#665acf")Accessibility — WCAG contrast
Aa
#665acf on white: 5.35:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#665acf on black: 3.93:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red40.0%
Green35.3%
Blue81.2%
CMYK percentages
Cyan50.7%
Magenta56.5%
Yellow0.0%
Key (black)18.8%
Color previews
#665acf text on a black background
contrast 3.93:1
Card sample
#665acf text on a white background
contrast 5.35:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #665acf;
Background color
Panel with #665acf background
background-color: #665acf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #665acf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(102, 90, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(102, 90, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #665acf; background: linear-gradient(135deg, #665acf, #B45ACF);