#3900ee
a balanced, electric blue · warm · closest name: blue
RGB
57, 0, 238
HSL
254°, 100%, 47%
CMYK
76, 100, 0, 7
Luminance
0.0704
Every format
| HEX | #3900ee |
| RGB | rgb(57, 0, 238) |
| HSL | hsl(254, 100%, 47%) |
| CMYK | cmyk(76%, 100%, 0%, 7%) |
| LAB | lab(31.9 75.9 -98.9) |
| LCH | lch(31.9 124.6 307.5) |
| OKLCH | oklch(0.448 0.286 273.3) |
Copy-ready code
/* CSS */
color: #3900ee;
background-color: #3900ee;
/* Tailwind (arbitrary) */
class="text-[#3900ee] bg-[#3900ee]"
/* SCSS */
$brand: #3900ee;
/* SwiftUI */
Color(red: 0.224, green: 0.000, blue: 0.933)
/* Android */
Color.parseColor("#3900ee")Accessibility — WCAG contrast
Aa
#3900ee on white: 8.72:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3900ee on black: 2.41:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green0.0%
Blue93.3%
CMYK percentages
Cyan76.1%
Magenta100.0%
Yellow0.0%
Key (black)6.7%
Color previews
#3900ee text on a black background
contrast 2.41:1
Card sample
#3900ee text on a white background
contrast 8.72:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3900ee;
Background color
Panel with #3900ee background
background-color: #3900ee;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3900ee;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 0, 238, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 0, 238, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3900ee; background: linear-gradient(135deg, #3900ee, #D800EE);