No they can't, its either red or white. The footwell ones are fixed white although you can buy replacement led units, that simply clip out/in. in red if you like the red. I did this and it makes a big difference. Only trouble is the ones fitted to the car are like 1 or 2 LED Diodes where the ones you can replace them with are 8 or 10 so much brighter. Even set to low they are quite bright.