I'm going from memory, so corrections welcome, but I believe that is the flag of the Ukraine.
There is no yellow and blue. It is red and white. The yellow and blue flag is from Sweden
The Romanian flag is red, yellow and blue.
green yellow and blue
Blue, Yellow, Red
It has a yellow cross on a blue background. The cross is slightly off centre. See the image below.
Blue,green,red,yellow.
Blue with yellow star circle
On the Asean flag the color blue means Pantone. In this flag also has the colors red and yellow in it.
The flag of Romania is composed of three colors, equally space vertical stripes of blue, yellow and red.
Barbados
Dark blue, light blue, red, yellow, and grey. See the Related Link below for the Wikipedia entry (including a picture of the flag).
blood red,feild yellow,sky blue.