I Tried the "8-Inch Rule" - and It's Going to Make Everything Look More Expensive
The '8-inch' paint rule significantly improves the accuracy of paint color selection by using larger swatches for better representation in different lighting.
Interior Designers Swear By This "8-Inch" Paint Rule
Paint swatches should be at least eight inches by eight inches; peel-and-stick samples or a two-foot square painted swatch are ideal for evaluating color.