Orange
a lighter orange or a darker orange depending on skin colour
Blue
orange, green and white
Any colour they choose. There is no instruction to Buddhists to dress only in (insert name of any colour) Every Buddhist ive seen that have the religion clothes on ( you know) wear orange.
purple
Dark red orange or burgundy
orange
The Irish flag or tri-colour consists of green, white and orange. Whilst most people wear green, it is just as acceptable to wear white or orange.
orange cap
just robes. no special name for them. BTW the color is saffron.
depends on what colour your pants are