I have clients in Maryland who are building an addition to their home.  I met with them today to verify previously chosen exterior colors  and to choose new colors for the addition interior.

We thought we had it all tied up. Until the sample we painted dried completely.

This particular taupe was nice and warm and brown when wet.  When we came back to it, it was cool gray.  The change was as severe as if the construction workers had snuck behind us and painted over it.

I have seen this with complex tones of taupe before.  Use a large swatch or allow the paint to dry at least an hour before deciding.