#397b9d
a dark, vivid blue · cool · closest name: steelblue
RGB
57, 123, 157
HSL
200°, 47%, 42%
CMYK
64, 22, 0, 38
Luminance
0.1747
Every format
| HEX | #397b9d |
| RGB | rgb(57, 123, 157) |
| HSL | hsl(200, 47%, 42%) |
| CMYK | cmyk(64%, 22%, 0%, 38%) |
| LAB | lab(48.9 -10.2 -24.5) |
| LCH | lch(48.9 26.6 247.5) |
| OKLCH | oklch(0.555 0.085 233.7) |
Copy-ready code
/* CSS */
color: #397b9d;
background-color: #397b9d;
/* Tailwind (arbitrary) */
class="text-[#397b9d] bg-[#397b9d]"
/* SCSS */
$brand: #397b9d;
/* SwiftUI */
Color(red: 0.224, green: 0.482, blue: 0.616)
/* Android */
Color.parseColor("#397b9d")Accessibility — WCAG contrast
Aa
#397b9d on white: 4.67:1
AA ✓ pass · AA-large ✓ · AAA ✗
Aa
#397b9d on black: 4.49:1
AA ✗ fail · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red22.4%
Green48.2%
Blue61.6%
CMYK percentages
Cyan63.7%
Magenta21.7%
Yellow0.0%
Key (black)38.4%
Color previews
#397b9d text on a black background
contrast 4.49:1
Card sample
#397b9d text on a white background
contrast 4.67:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #397b9d;
Background color
Panel with #397b9d background
background-color: #397b9d;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #397b9d;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(57, 123, 157, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(57, 123, 157, 0.45);
Border & gradient
Gradient panel
border: 3px solid #397b9d; background: linear-gradient(135deg, #397b9d, #3A399D);