Change header colour for different pages

My homepage is here (currently only working in Chrome) –

http://haut.in/

As you can see the header logo is white which is fine.

However on these two pages –

http://haut.in/?page_id=149
http://haut.in/?page_id=151

The background is white, which of course means the logo won’t show up.

The logo is currently an uploaded png. The theme I am using has a specific section in the interface to upload the header logo.

I can create a new logo in black, but how would I set the individual pages to read a different logo to the one on the homepage?

Or would it be easier to configure the logo headings with a web font?

I would really appreciate any help on this.

Thanks