Not an easy question to answer. The basic uniform was olive green, which was quite dark when new, but fades out to a variety of colours with washing. Helmets were the same colour, but I've seen some pics were a much lighter and brighter colour has been used, presumably to fit in with the different colours of fauna over the seasons perhaps? Where berets were worn, the Republican Guard wore maroon or red and the regular army black. There were some camouflage uniforms, but I haven't any idea what they were like.