#233f55
a deep, soft blue · cool · closest name: darkslategray
RGB
35, 63, 85
HSL
206°, 42%, 24%
CMYK
59, 26, 0, 67
Luminance
0.0457
Every format
| HEX | #233f55 |
| RGB | rgb(35, 63, 85) |
| HSL | hsl(206, 42%, 24%) |
| CMYK | cmyk(59%, 26%, 0%, 67%) |
| LAB | lab(25.5 -3.2 -16.4) |
| LCH | lch(25.5 16.8 258.9) |
| OKLCH | oklch(0.356 0.051 243.6) |
Copy-ready code
/* CSS */
color: #233f55;
background-color: #233f55;
/* Tailwind (arbitrary) */
class="text-[#233f55] bg-[#233f55]"
/* SCSS */
$brand: #233f55;
/* SwiftUI */
Color(red: 0.137, green: 0.247, blue: 0.333)
/* Android */
Color.parseColor("#233f55")Accessibility — WCAG contrast
Aa
#233f55 on white: 10.97:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#233f55 on black: 1.91:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red13.7%
Green24.7%
Blue33.3%
CMYK percentages
Cyan58.8%
Magenta25.9%
Yellow0.0%
Key (black)66.7%
Color previews
#233f55 text on a black background
contrast 1.91:1
Card sample
#233f55 text on a white background
contrast 10.97:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #233f55;
Background color
Panel with #233f55 background
background-color: #233f55;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #233f55;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(35, 63, 85, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(35, 63, 85, 0.45);
Border & gradient
Gradient panel
border: 3px solid #233f55; background: linear-gradient(135deg, #233f55, #282355);