Careful selection of interior wall colors is a rewarding but tedious chore. Small paint swatches do not reveal the color interactions that will occur between the actual paint and other objects in the room. Even large swatches are too small to indicate the intensity generated by an entire wall of color.
Professional Color Specifiers always insist upon seeing an actual wall painted with the proposed paint and color before confirming a paint order. It is very helpful to “live with” a color for a few days before confirming a selection.