Better not ba...
When i rebonded my hair, my stylist asked me to let my hair rest
for three weeks before colouring...
The main objective to straighten and colour is to beautify
yourself, and it defeats the purpose if you end up with damaged
hair...
Honestly, it's better to have dull coloured straight healthy hair,
then to have nicely coloured, straight hair that looks like
hay...
Just my humble opinion... 