#10397b
a dark, electric blue · cool · closest name: midnightblue
RGB
16, 57, 123
HSL
217°, 77%, 27%
CMYK
87, 54, 0, 52
Luminance
0.0447
Every format
| HEX | #10397b |
| RGB | rgb(16, 57, 123) |
| HSL | hsl(217, 77%, 27%) |
| CMYK | cmyk(87%, 54%, 0%, 52%) |
| LAB | lab(25.2 13.0 -41.4) |
| LCH | lch(25.2 43.4 287.5) |
| OKLCH | oklch(0.359 0.121 259.9) |
Copy-ready code
/* CSS */
color: #10397b;
background-color: #10397b;
/* Tailwind (arbitrary) */
class="text-[#10397b] bg-[#10397b]"
/* SCSS */
$brand: #10397b;
/* SwiftUI */
Color(red: 0.063, green: 0.224, blue: 0.482)
/* Android */
Color.parseColor("#10397b")Accessibility — WCAG contrast
Aa
#10397b on white: 11.09:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#10397b on black: 1.89:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red6.3%
Green22.4%
Blue48.2%
CMYK percentages
Cyan87.0%
Magenta53.7%
Yellow0.0%
Key (black)51.8%
Color previews
#10397b text on a black background
contrast 1.89:1
Card sample
#10397b text on a white background
contrast 11.09:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #10397b;
Background color
Panel with #10397b background
background-color: #10397b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #10397b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(16, 57, 123, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(16, 57, 123, 0.45);
Border & gradient
Gradient panel
border: 3px solid #10397b; background: linear-gradient(135deg, #10397b, #2E107B);