You have two sinks and two posts. The sink color looks installed, as it does sitting on the floor uninstalled. It is much ado about nothing.......: ) All Kohler white is Kohler white. and it is white. Inches do not lie, !2 x 18 is a rectangle. The sink isn't the "feature" . The faucets are the feature. It's a rectangular white under mounted sink . That's really all it is.

Check against the counter top you will be using and then decide if you're OK with the color of either one.