#178fdf
a balanced, electric blue · cool · closest name: steelblue
RGB
23, 143, 223
HSL
204°, 81%, 48%
CMYK
90, 36, 0, 13
Luminance
0.2515
Every format
| HEX | #178fdf |
| RGB | rgb(23, 143, 223) |
| HSL | hsl(204, 81%, 48%) |
| CMYK | cmyk(90%, 36%, 0%, 13%) |
| LAB | lab(57.2 -1.8 -49.1) |
| LCH | lch(57.2 49.2 267.9) |
| OKLCH | oklch(0.629 0.154 245.6) |
Copy-ready code
/* CSS */
color: #178fdf;
background-color: #178fdf;
/* Tailwind (arbitrary) */
class="text-[#178fdf] bg-[#178fdf]"
/* SCSS */
$brand: #178fdf;
/* SwiftUI */
Color(red: 0.090, green: 0.561, blue: 0.875)
/* Android */
Color.parseColor("#178fdf")Accessibility — WCAG contrast
Aa
#178fdf on white: 3.48:1
AA ✗ fail · AA-large ✓ · AAA ✗
Aa
#178fdf on black: 6.03:1
AA ✓ pass · AA-large ✓ · AAA ✗
true color
protanopia
deuteranopia
tritanopia
RGB percentages
Red9.0%
Green56.1%
Blue87.5%
CMYK percentages
Cyan89.7%
Magenta35.9%
Yellow0.0%
Key (black)12.5%
Color previews
#178fdf text on a black background
contrast 6.03:1
Card sample
#178fdf text on a white background
contrast 3.48:1
Card sample
CSS3 live lab
Text font color
The quick brown fox
color: #178fdf;
Background color
Panel with #178fdf background
background-color: #178fdf;
Text shadow — hex
Glowing headline
text-shadow: 2px 2px 8px #178fdf;
Text shadow — RGB
Soft neon halo
text-shadow: 0 0 14px rgba(23, 143, 223, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(23, 143, 223, 0.45);
Border & gradient
Gradient panel
border: 3px solid #178fdf; background: linear-gradient(135deg, #178fdf, #2417DF);