#1237a9
a dark, electric blue · warm · closest name: slateblue
RGB
18, 55, 169
HSL
225°, 81%, 37%
CMYK
89, 68, 0, 34
Luminance
0.0573
Every format
| HEX | #1237a9 |
| RGB | rgb(18, 55, 169) |
| HSL | hsl(225, 81%, 37%) |
| CMYK | cmyk(89%, 68%, 0%, 34%) |
| LAB | lab(28.7 33.3 -63.9) |
| LCH | lch(28.7 72.1 297.5) |
| OKLCH | oklch(0.398 0.186 264.7) |
Copy-ready code
/* CSS */
color: #1237a9;
background-color: #1237a9;
/* Tailwind (arbitrary) */
class="text-[#1237a9] bg-[#1237a9]"
/* SCSS */
$brand: #1237a9;
/* SwiftUI */
Color(red: 0.071, green: 0.216, blue: 0.663)
/* Android */
Color.parseColor("#1237a9")Accessibility — WCAG contrast
Aa
#1237a9 on white: 9.79:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#1237a9 on black: 2.15:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red7.1%
Green21.6%
Blue66.3%
CMYK percentages
Cyan89.3%
Magenta67.5%
Yellow0.0%
Key (black)33.7%
Color previews
#1237a9 text on a black background
contrast 2.15:1
Card sample
#1237a9 text on a white background
contrast 9.79:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #1237a9;
Background color
Panel with #1237a9 background
background-color: #1237a9;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #1237a9;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(18, 55, 169, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(18, 55, 169, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1237a9; background: linear-gradient(135deg, #1237a9, #5212A9);