#178ca4
a dark, electric cyan · cool · closest name: teal
RGB
23, 140, 164
HSL
190°, 75%, 37%
CMYK
86, 15, 0, 36
Luminance
0.2162
Every format
| HEX | #178ca4 |
| RGB | rgb(23, 140, 164) |
| HSL | hsl(190, 75%, 37%) |
| CMYK | cmyk(86%, 15%, 0%, 36%) |
| LAB | lab(53.6 -21.6 -21.3) |
| LCH | lch(53.6 30.3 224.7) |
| OKLCH | oklch(0.592 0.101 216.4) |
Copy-ready code
/* CSS */
color: #178ca4;
background-color: #178ca4;
/* Tailwind (arbitrary) */
class="text-[#178ca4] bg-[#178ca4]"
/* SCSS */
$brand: #178ca4;
/* SwiftUI */
Color(red: 0.090, green: 0.549, blue: 0.643)
/* Android */
Color.parseColor("#178ca4")Accessibility — WCAG contrast
Aa
#178ca4 on white: 3.94:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#178ca4 on black: 5.32:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green54.9%
Blue64.3%
CMYK percentages
Cyan86.0%
Magenta14.6%
Yellow0.0%
Key (black)35.7%
Color previews
#178ca4 text on a black background
contrast 5.32:1
Card sample
#178ca4 text on a white background
contrast 3.94:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #178ca4;
Background color
Panel with #178ca4 background
background-color: #178ca4;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #178ca4;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 140, 164, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 140, 164, 0.45);
Border & gradient
Gradient panel
border: 3px solid #178ca4; background: linear-gradient(135deg, #178ca4, #172EA4);