#233f9b
a dark, vivid blue · warm · closest name: midnightblue
RGB
35, 63, 155
HSL
226°, 63%, 37%
CMYK
77, 59, 0, 39
Luminance
0.0628
Every format
| HEX | #233f9b |
| RGB | rgb(35, 63, 155) |
| HSL | hsl(226, 63%, 37%) |
| CMYK | cmyk(77%, 59%, 0%, 39%) |
| LAB | lab(30.1 23.9 -53.2) |
| LCH | lch(30.1 58.3 294.2) |
| OKLCH | oklch(0.406 0.154 266.5) |
Copy-ready code
/* CSS */
color: #233f9b;
background-color: #233f9b;
/* Tailwind (arbitrary) */
class="text-[#233f9b] bg-[#233f9b]"
/* SCSS */
$brand: #233f9b;
/* SwiftUI */
Color(red: 0.137, green: 0.247, blue: 0.608)
/* Android */
Color.parseColor("#233f9b")Accessibility — WCAG contrast
Aa
#233f9b on white: 9.31:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#233f9b on black: 2.26:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red13.7%
Green24.7%
Blue60.8%
CMYK percentages
Cyan77.4%
Magenta59.4%
Yellow0.0%
Key (black)39.2%
Color previews
#233f9b text on a black background
contrast 2.26:1
Card sample
#233f9b text on a white background
contrast 9.31:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #233f9b;
Background color
Panel with #233f9b background
background-color: #233f9b;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #233f9b;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(35, 63, 155, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(35, 63, 155, 0.45);
Border & gradient
Gradient panel
border: 3px solid #233f9b; background: linear-gradient(135deg, #233f9b, #57239B);