Similar colour appearance JBL 43 series and Marantz 3250B

I find the appearance of the JBL 43 series similar to these Marantz 3250B in cosmetic colour appearance only. Was this the trend of colour though the late 70’s and 80’s? So what’s the deal between Marantz and JBL and who was the first to establish this colour design? Also note the layout difference with the crossover controls on the Marantz 3250B placed below on the front enclosure.
http://www.tze319.net/images/uploads/2006/jbl4344.jpg

http://telefunken.te.funpic.de/marantz82/marantz24.jpg