#1237cb
a dark, electric blue · warm · closest name: navy
RGB
18, 55, 203
HSL
228°, 84%, 43%
CMYK
91, 73, 0, 20
Luminance
0.0717
Every format
| HEX | #1237cb |
| RGB | rgb(18, 55, 203) |
| HSL | hsl(228, 84%, 43%) |
| CMYK | cmyk(91%, 73%, 0%, 20%) |
| LAB | lab(32.2 45.8 -78.3) |
| LCH | lch(32.2 90.7 300.3) |
| OKLCH | oklch(0.434 0.228 265.2) |
Copy-ready code
/* CSS */
color: #1237cb;
background-color: #1237cb;
/* Tailwind (arbitrary) */
class="text-[#1237cb] bg-[#1237cb]"
/* SCSS */
$brand: #1237cb;
/* SwiftUI */
Color(red: 0.071, green: 0.216, blue: 0.796)
/* Android */
Color.parseColor("#1237cb")Accessibility — WCAG contrast
Aa
#1237cb on white: 8.63:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#1237cb on black: 2.43:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red7.1%
Green21.6%
Blue79.6%
CMYK percentages
Cyan91.1%
Magenta72.9%
Yellow0.0%
Key (black)20.4%
Color previews
#1237cb text on a black background
contrast 2.43:1
Card sample
#1237cb text on a white background
contrast 8.63:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #1237cb;
Background color
Panel with #1237cb background
background-color: #1237cb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #1237cb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(18, 55, 203, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(18, 55, 203, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1237cb; background: linear-gradient(135deg, #1237cb, #6812CB);