You may say 'ichiban suki na iro ha nan desu ka'.
There is no such thing as a favourite colour for Japanese for each individual has their own favourite colour be it specific as scarlet or simple as red.
favourite colour is black favourute food is any japanese food
ichiban sukina aji
His favorite color is orange I talked with him on the phone
I'm not sure what your asking, the colour grey is "hairo" the name gray is "gurei"
Taylor swifts favourite colour is white and her second favourite is pink , her favourite food it cheesecake.:)
Vanessa's favorite colour is red
Their favourite colour is blue.
You may say 'ichiban suki na no.'
Her fav colour is pink and purple
Red and the question should say what is olly murs favourite colour?
His favourite colour is blue =]