HEX to HSLA
Surface + alpha in one string family
hsla(h, s%, l%, a) pairs perceptual lightness tweaks with floating alpha—ideal for translucent panels where rgba() feels foreign to designers. Starting from opaque hex yields alpha 1 unless you merge another source.
Cross-browser nuance
Older Safari builds ignored hsla with missing commas; modern syntax is forgiving but lint rules vary. When storing tokens, many teams still prefer eight-digit hex—compare HEX to HEXA for compact persistence.