No, it's the color yellow in Spanish.
The word 'amarillo' means a city in the northern panhandle of Texas
The population of Amarillo, Texas on December 21st 2011 is approximately 191,978. (Extrapolated from a 2000 US census population of 173,627 and a population of 190,695 on February 21st 2011.)
Amarillo is in the Panhandle of texas, that northern part shaped like a rectangle
TEXAS