#178df3
a balanced, electric blue · cool · closest name: dodgerblue
RGB
23, 141, 243
HSL
208°, 90%, 52%
CMYK
91, 42, 0, 5
Luminance
0.2570
Every format
| HEX | #178df3 |
| RGB | rgb(23, 141, 243) |
| HSL | hsl(208, 90%, 52%) |
| CMYK | cmyk(91%, 42%, 0%, 5%) |
| LAB | lab(57.8 6.9 -59.4) |
| LCH | lch(57.8 59.8 276.6) |
| OKLCH | oklch(0.637 0.180 251.5) |
Copy-ready code
/* CSS */
color: #178df3;
background-color: #178df3;
/* Tailwind (arbitrary) */
class="text-[#178df3] bg-[#178df3]"
/* SCSS */
$brand: #178df3;
/* SwiftUI */
Color(red: 0.090, green: 0.553, blue: 0.953)
/* Android */
Color.parseColor("#178df3")Accessibility — WCAG contrast
Aa
#178df3 on white: 3.42:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#178df3 on black: 6.14:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green55.3%
Blue95.3%
CMYK percentages
Cyan90.5%
Magenta42.0%
Yellow0.0%
Key (black)4.7%
Color previews
#178df3 text on a black background
contrast 6.14:1
Card sample
#178df3 text on a white background
contrast 3.42:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #178df3;
Background color
Panel with #178df3 background
background-color: #178df3;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #178df3;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 141, 243, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 141, 243, 0.45);
Border & gradient
Gradient panel
border: 3px solid #178df3; background: linear-gradient(135deg, #178df3, #3417F3);