Tripels are traditionally golden and strong, though can be rather light indeed (despite the ABV being pretty high up there for a beer). 'Tripel' in terms of beer is a name which was used by the Trappist Brewery at Westmalle for one of their stronger beers, and many see this beer as the one to beat. As such, many Tripel beers will hark back to this particular Trappist brew.
A staple of Belgian beer cafés, you’ll often see Tripel beers with thick heads of foam and a golden hue (alongside Dubbels and even Quadrupels) - very inviting indeed. Combining traditionally spicy yeasts with subtle notes of sweet, creamy malts and sometimes quite prominent hops, these can be quite quaffable even with their rather imposing ABVs.