Spain´s flag (the national one) is as colorful as country itself with its red and yellow horizontal triband.
The yellow stripe is in middle and is twice as tall as each red band, and height of flag is two-thirds width.
A simplified version of Spain´s coat-of-arms is pictured on yellow band, towards hoist side.
The Spanish coat-of-arms includes royal seal, framed by Pillars of Hercules, which represent Gibraltar and Ceuta on either side of eastern end of Strait of Gibraltar.
The red banners display motto in Latin PLUS ULTRA, which means "More Beyond", alluding to Columbus´ discovery of New World.
The two columns flank a shield that displays a castle, a lion wearing a crown, red and yellow vertical stripes, chain mail, and three fleurs-de-lis in an oval in center.
An ornate red and golden crown sits atop shield.
The flag used today in Spain was officially adopted on 19 December 1981. Previous to this, there had been an eagle on it as well but, in 1981, eagle was removed, leaving current red/yellow/red triband with crowned arms.