Because they don't look good together i guess!! Sorry for the bad answer.
some colors that dont go with blue the one that dont are blue and pink
no
They are colours that do not match
not if you're using bright colors like lime green or hot pink. it actually looks cooler if bright colors are different. if you're using sophisticated colors like light pink or a non-bright red, it's best that they match. but that's just my opinion. also, never paint your nails to match your clothes. it looks better if they dont.
You can combine colors like; purple, beige, white, some blue colors, dusty rose, black
dont thinf their is amy
White and beige are a couple of colors that will match a brown duvet. These two colors are the most common types of colors you will find on a brown duvet.
Image > Adjustments > Match Color
Some good design tips would be to always think about the colors. What is going to be contrast and match. Make sure the colors flow into the next room and make sure if doing floors to try to run floors to the next room. dont put 6 different color floors in your house.
test it
Blue
Yellow and red!