#3900f7
a balanced, electric blue · warm · closest name: blue
RGB
57, 0, 247
HSL
254°, 100%, 48%
CMYK
77, 100, 0, 3
Luminance
0.0759
Every format
| HEX | #3900f7 |
| RGB | rgb(57, 0, 247) |
| HSL | hsl(254, 100%, 48%) |
| CMYK | cmyk(77%, 100%, 0%, 3%) |
| LAB | lab(33.1 78.0 -102.0) |
| LCH | lch(33.1 128.4 307.4) |
| OKLCH | oklch(0.460 0.295 272.6) |
Copy-ready code
/* CSS */
color: #3900f7;
background-color: #3900f7;
/* Tailwind (arbitrary) */
class="text-[#3900f7] bg-[#3900f7]"
/* SCSS */
$brand: #3900f7;
/* SwiftUI */
Color(red: 0.224, green: 0.000, blue: 0.969)
/* Android */
Color.parseColor("#3900f7")Accessibility — WCAG contrast
Aa
#3900f7 on white: 8.34:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#3900f7 on black: 2.52:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green0.0%
Blue96.9%
CMYK percentages
Cyan76.9%
Magenta100.0%
Yellow0.0%
Key (black)3.1%
Color previews
#3900f7 text on a black background
contrast 2.52:1
Card sample
#3900f7 text on a white background
contrast 8.34:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #3900f7;
Background color
Panel with #3900f7 background
background-color: #3900f7;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #3900f7;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 0, 247, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 0, 247, 0.45);
Border & gradient
Gradient panel
border: 3px solid #3900f7; background: linear-gradient(135deg, #3900f7, #DD00F7);