https://www.techradar.com/news/new-iphone-x-color-may-be-coming-soon-but-what-could-it-be

Today you can only buy the iPhone X in two colors, but we can likely expect some new ones in the future considering Apple is prone to having three or more colors for each of its phones.

That may happen sooner rather than later, as a new report from rumors site Mac Otakara says Apple is looking to "restore sales" of its most expensive phone with a new color option.