The term 'Utah western color' likely refers to the distinctive colors found in the western part of the state of Utah, USA. This region is characterized by its red rock formations, which are a result of the erosion of sedimentary rocks over millions of years. These formations are rich in minerals like iron oxide, giving them their characteristic red hue. The area is also known for its diverse landscapes, including deserts, plateaus, and mountain ranges, each with its own unique color palette. Some famous locations with these colors include Zion National Park, Bryce Canyon National Park, and Arches National Park.