#1237bb
a dark, electric blue · warm · closest name: navy
RGB
18, 55, 187
HSL
227°, 82%, 40%
CMYK
90, 71, 0, 27
Luminance
0.0645
Every format
| HEX | #1237bb |
| RGB | rgb(18, 55, 187) |
| HSL | hsl(227, 82%, 40%) |
| CMYK | cmyk(90%, 71%, 0%, 27%) |
| LAB | lab(30.5 40.0 -71.7) |
| LCH | lch(30.5 82.1 299.2) |
| OKLCH | oklch(0.417 0.209 265.0) |
Copy-ready code
/* CSS */
color: #1237bb;
background-color: #1237bb;
/* Tailwind (arbitrary) */
class="text-[#1237bb] bg-[#1237bb]"
/* SCSS */
$brand: #1237bb;
/* SwiftUI */
Color(red: 0.071, green: 0.216, blue: 0.733)
/* Android */
Color.parseColor("#1237bb")Accessibility — WCAG contrast
Aa
#1237bb on white: 9.17:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#1237bb on black: 2.29:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red7.1%
Green21.6%
Blue73.3%
CMYK percentages
Cyan90.4%
Magenta70.6%
Yellow0.0%
Key (black)26.7%
Color previews
#1237bb text on a black background
contrast 2.29:1
Card sample
#1237bb text on a white background
contrast 9.17:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #1237bb;
Background color
Panel with #1237bb background
background-color: #1237bb;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #1237bb;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(18, 55, 187, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(18, 55, 187, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1237bb; background: linear-gradient(135deg, #1237bb, #5E12BB);