Dera @ramgonru
If the pages are all different colours
This can be achieved through adding some custom code to 'Lay Options - Custom CSS & HTML'
Do you have any example of what you wish to achieve or the link to your website?
This would be a first step but there are many options out there :)
https://stackoverflow.com/questions/6750695/jquery-change-text-color-based-on-containing-elements-background-color
Best
Richard