Exterior Paint Colour

[Babs43ish]

My builder has recommended Sandtex paint. Any recommendations for an off white colour in this make? Had a look at the colour chart but hard to tell 🥴. Thanks in advance

Chalk Hill is my fave. A sort of griege, that scales up to a lovely soft off white.

Thank you. Have bought a sample pot does look slightly grey but would you say once done properly looks more white than grey? Also bought a sample of cotton belt but that looks a bit more yellow/cream. Am hopeless at making decisions 🤪🤪