#40397b
a dark, soft blue · warm · closest name: midnightblue
RGB
64, 57, 123
HSL
246°, 37%, 35%
CMYK
48, 54, 0, 52
Luminance
0.0545
Every format
| HEX | #40397b |
| RGB | rgb(64, 57, 123) |
| HSL | hsl(246, 37%, 35%) |
| CMYK | cmyk(48%, 54%, 0%, 52%) |
| LAB | lab(28.0 21.6 -36.8) |
| LCH | lch(28.0 42.6 300.4) |
| OKLCH | oklch(0.388 0.108 285.0) |
Copy-ready code
/* CSS */
color: #40397b;
background-color: #40397b;
/* Tailwind (arbitrary) */
class="text-[#40397b] bg-[#40397b]"
/* SCSS */
$brand: #40397b;
/* SwiftUI */
Color(red: 0.251, green: 0.224, blue: 0.482)
/* Android */
Color.parseColor("#40397b")Accessibility — WCAG contrast
Aa
#40397b on white: 10.05:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#40397b on black: 2.09:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red25.1%
Green22.4%
Blue48.2%
CMYK percentages
Cyan48.0%
Magenta53.7%
Yellow0.0%
Key (black)51.8%
Color previews
#40397b text on a black background
contrast 2.09:1
Card sample
#40397b text on a white background
contrast 10.05:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #40397b;
Background color
Panel with #40397b background
background-color: #40397b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #40397b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(64, 57, 123, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(64, 57, 123, 0.45);
Border & gradient
Gradient panel
border: 3px solid #40397b; background: linear-gradient(135deg, #40397b, #6C397B);