The decision for this particular color
Tricorn Black can be considered for bathroom if its color and depth suit the space; the first design question is black trim that frames rather than fragments the room. Tricorn Black is an appropriate baseline for comparing blacks because the manufacturer explicitly describes it without undertones.
Why the white plaster and oak doors relationship matters
Repeated black casings can divide a room into many outlines; the total number of painted edges is a design decision beyond color selection.
Tricorn Black and Black Magic both have a published LRV of 3. That equality describes reflectance, not matching colorants or identical undertones.
Let tile and porcelain set the limits
Assess Tricorn Black on the vanity or wall under the bathroom's actual lighting. Check the shadow below the countertop and the dark outline in the mirror. The porcelain can provide a large light contrast, but its brightness does not establish how the rest of the painted surface will read.
Separate the palette from the moisture specification
Map every black edge in the room before painting; the number of outlines matters as much as the shade. The daylight and evening-light checks covers that related choice.
Choose a Sherwin-Williams coating appropriate to the bathroom surface and follow the manufacturer's preparation and application guidance. Color SW-6258 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: Sherwin-Williams Tricorn Black SW-6258. The recorded LRV is 3. 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. Sherwin-Williams 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.

