#1237ef
a balanced, electric blue · warm · closest name: blue
RGB
18, 55, 239
HSL
230°, 87%, 50%
CMYK
93, 77, 0, 6
Luminance
0.0909
Every format
| HEX | #1237ef |
| RGB | rgb(18, 55, 239) |
| HSL | hsl(230, 87%, 50%) |
| CMYK | cmyk(93%, 77%, 0%, 6%) |
| LAB | lab(36.2 57.9 -92.4) |
| LCH | lch(36.2 109.1 302.1) |
| OKLCH | oklch(0.474 0.269 265.2) |
Copy-ready code
/* CSS */
color: #1237ef;
background-color: #1237ef;
/* Tailwind (arbitrary) */
class="text-[#1237ef] bg-[#1237ef]"
/* SCSS */
$brand: #1237ef;
/* SwiftUI */
Color(red: 0.071, green: 0.216, blue: 0.937)
/* Android */
Color.parseColor("#1237ef")Accessibility — WCAG contrast
Aa
#1237ef on white: 7.45:1
AA ✓ pass · AA-large ✓ · AAA ✓
Aa
#1237ef on black: 2.82:1
AA ✗ fail · AA-large ✗ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red7.1%
Green21.6%
Blue93.7%
CMYK percentages
Cyan92.5%
Magenta77.0%
Yellow0.0%
Key (black)6.3%
Color previews
#1237ef text on a black background
contrast 2.82:1
Card sample
#1237ef text on a white background
contrast 7.45:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #1237ef;
Background color
Panel with #1237ef background
background-color: #1237ef;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #1237ef;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(18, 55, 239, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(18, 55, 239, 0.45);
Border & gradient
Gradient panel
border: 3px solid #1237ef; background: linear-gradient(135deg, #1237ef, #8112EF);