The brand of the non-profit I work for is two colours (a blue and a purple), but they have not allowed for a secondary colour palette. I'm looking for a tool that will allow me to enter those two colours and then suggest secondary colours or palettes that could work. We engage professional designers on major work but for presentations and other materials we produce in-house it would be handy to have some secondary colours to work with.
I've been unable to find a tool that fits the bill, including Kuler. Does anyone know of a tool that does? Thanks.