#178acf
a balanced, electric blue · cool · closest name: steelblue
RGB
23, 138, 207
HSL
203°, 80%, 45%
CMYK
89, 33, 0, 19
Luminance
0.2286
Every format
| HEX | #178acf |
| RGB | rgb(23, 138, 207) |
| HSL | hsl(203, 80%, 45%) |
| CMYK | cmyk(89%, 33%, 0%, 19%) |
| LAB | lab(54.9 -4.9 -43.8) |
| LCH | lch(54.9 44.0 263.6) |
| OKLCH | oklch(0.608 0.140 242.8) |
Copy-ready code
/* CSS */
color: #178acf;
background-color: #178acf;
/* Tailwind (arbitrary) */
class="text-[#178acf] bg-[#178acf]"
/* SCSS */
$brand: #178acf;
/* SwiftUI */
Color(red: 0.090, green: 0.541, blue: 0.812)
/* Android */
Color.parseColor("#178acf")Accessibility — WCAG contrast
Aa
#178acf on white: 3.77:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#178acf on black: 5.57:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green54.1%
Blue81.2%
CMYK percentages
Cyan88.9%
Magenta33.3%
Yellow0.0%
Key (black)18.8%
Color previews
#178acf text on a black background
contrast 5.57:1
Card sample
#178acf text on a white background
contrast 3.77:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #178acf;
Background color
Panel with #178acf background
background-color: #178acf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #178acf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 138, 207, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 138, 207, 0.45);
Border & gradient
Gradient panel
border: 3px solid #178acf; background: linear-gradient(135deg, #178acf, #1F17CF);