Quick Reference
The HSLA color value is specified with the hsla() function, which has the following syntax: hsla(hue, saturation, lightness, alpha).
- Hue is a degree on the color wheel (from 0 to 360) – 0 (or 360) is red, 120 is green, 240 is blue
- Saturation is a percentage value – 0% means a shade of gray and 100% is the full color
- Lightness is a percentage – 0% is black, 100% is white
- Alpha is a number between 0.0 (fully transparent) and 1.0 (fully opaque)
div {
color: hsla(0, 100%, 50%, 0.5); /* red with 0.5 opacity */
}Syntax
hsla(hue, saturation, lightness, alpha)Values
| Value | Description |
|---|---|
| hue | Defines a degree on the color wheel (from 0 to 360) - 0 (or 360) is red, 120 is green, 240 is blue |
| saturation | Defines the saturation; 0% is a shade of gray and 100% is the full color (full saturation) |
| lightness | Defines the lightness; 0% is black, 50% is normal, and 100% is white |
| alpha | Defines the opacity as a number between 0.0 (fully transparent) and 1.0 (fully opaque) |
CSS Notes:
- The “inherit”, “initial” and “unset” keywords can be used with any CSS property to set its value
- In CSS there are many ways to express a color value in a property
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.