Red and yellow flags

5 countries have a red and yellow flag, with no other significant colour: Kyrgyzstan, Montenegro, North Macedonia, Spain, Vietnam. 44 other flags also contain these colours, plus others.

Red and yellow, plus other colours

Other colour combinations

red, white and bluered and whitered, green and yellowred, white and greenred, blue and yellowwhite and blueblue and yellowred, white, green and blackred and greenred, yellow and blackblue, green and yellowwhite, blue and greenwhite, green and orangered, white and blackred, white, blue and greenred and bluered and blackred, white, blue and blackred, blue and greenred, white, green and yellowwhite, blue and blackred, blue, green and yellowred, green and blackwhite and greenred, green, yellow and black

Quiz: name the flags Find a flag by its colours