Need to export HSLa color codes without Photoshop? Try Avocode
No need to buy or install Photoshop. Open layered Photoshop designs on Mac, Windows, Linux or in the browser with Avocode and pick color codes pixel precisely, inspect and much more.
Start by switching to the Color picker in the toolbar. Then click on any part of the design. If you want to be pixel perfect, hold your mouse and a mangifying glass will show up so you can position your selection.
When you've chosen the precisely pixel you're picking the color from, release the mouse button and the HSLa code value will be copied to your clipboard.
If you want to change the color code format, go to Design settings/Interface. There you can choose between HEX, HEX8, HSLa, UIColor and RGBa.