Multiple choice general knowledge What do McDonalds' colors - yellow and red - symbolize? Both yellow and red increase hunger. Red also encourages shopping. Yellow and red are the national colors of Scotland, the home country of Ronald McDonald. Yellow symbolizes mustard and red symbolizes ketchup. Yellow represents customers and red represents food. Reveal answer Fill a bubble to check yourself A Correct answer Explanation Red and yellow are warm colors that stimulate appetite and create urgency. Red increases hunger and heart rate, while yellow grabs attention and encourages impulse decisions. This combination is deliberately used in fast food branding.