The decision for this particular color
Classic Gray can be considered for bathroom if its color and depth suit the space; the first design question is enough contrast to justify a second neutral. Classic Gray's lightness makes subtle separation its useful role; demanding a strongly outlined gray wall would suggest a different brief.
Why the white trim and pale limestone relationship matters
Pale limestone and white trim can leave little value contrast, so the decision may be about whether a second neutral is needed at all.
Classic Gray has an LRV of 73.67; Benjamin Moore Pale Oak OC-20 is 68.64. The difference is 5.03 points, with Classic Gray returning more light under the reference measurement.
Let tile and porcelain set the limits
Put the Classic Gray sample next to the basin, the largest tile and the grout line. Turn on the vanity light and view the sample directly, then in the mirror; reflections can add other colored surfaces to the scene. The white trim and pale limestone direction is a starting idea, but the bathroom's actual ceramic and stone take priority over an inspiration palette.
Separate the palette from the moisture specification
Retain it for a gentle wall-to-trim difference, not a pronounced gray outline. The undertones and neighboring colors covers that related choice. The daylight and evening-light checks covers that related choice.
Choose a Benjamin Moore coating appropriate to the bathroom surface and follow the manufacturer's preparation and application guidance. Color OC-23 does not identify a moisture-control system. Ventilation, substrate condition and the intended finish are separate decisions; approve the color under the real vanity lighting before ordering the full paint quantity. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Benjamin Moore Classic Gray OC-23. The recorded LRV is 73.67. Named comparison values come from the respective manufacturers; material schemes are editorial suggestions.
This guide reviews published color information and proposes practical sample checks. It does not claim first-hand paint testing or customer-review scores. Benjamin Moore does not sponsor or endorse this site. Product names and trademarks belong to their respective owners. Confirm the color in a physical sample and select the coating for the actual surface and finish.

