#640dbb
a dark, electric violet · warm · closest name: indigo
RGB
100, 13, 187
HSL
270°, 87%, 39%
CMYK
47, 93, 0, 27
Luminance
0.0659
Every format
| HEX | #640dbb |
| RGB | rgb(100, 13, 187) |
| HSL | hsl(270, 87%, 39%) |
| CMYK | cmyk(47%, 93%, 0%, 27%) |
| LAB | lab(30.8 64.4 -70.9) |
| LCH | lch(30.8 95.8 312.3) |
| OKLCH | oklch(0.434 0.228 296.9) |
Copy-ready code
/* CSS */
color: #640dbb;
background-color: #640dbb;
/* Tailwind (arbitrary) */
class="text-[#640dbb] bg-[#640dbb]"
/* SCSS */
$brand: #640dbb;
/* SwiftUI */
Color(red: 0.392, green: 0.051, blue: 0.733)
/* Android */
Color.parseColor("#640dbb")Accessibility — WCAG contrast
Aa
#640dbb on white: 9.06:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#640dbb on black: 2.32:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red39.2%
Green5.1%
Blue73.3%
CMYK percentages
Cyan46.5%
Magenta93.0%
Yellow0.0%
Key (black)26.7%
Color previews
#640dbb text on a black background
contrast 2.32:1
Card sample
#640dbb text on a white background
contrast 9.06:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #640dbb;
Background color
Panel with #640dbb background
background-color: #640dbb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #640dbb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(100, 13, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(100, 13, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #640dbb; background: linear-gradient(135deg, #640dbb, #BB0D9E);