I have some yellow masonry paint (Sandtex) which is not quite a match for my house (the paint I have is slightly darker and greener than the house). I have lightened it with a splash of white masonry paint, but I think I really need to add a small amount of red tint.
I am wondering whether I can use an artists type of paint to do this. I have some artists' watercolour and gauche, as well as oil paints.
I'll be mixing very small amounts to patch up around where I have fitted some new windows, so I don't really want to buy anything at this point. Any experience, suggestions?