The decision for this particular color
Debonair can be considered for bathroom if its color and depth suit the space; the first design question is blue millwork without the near-black weight of navy. Debonair occupies a middle ground between pale slate blues and near-black navies.
Why the cream walls and brushed brass relationship matters
Cream walls allow blue millwork to become the architectural color, with brass used as a smaller highlight rather than the main contrast.
Debonair has an LRV of 34; Sherwin-Williams Stardew SW-9138 is 43. The difference is 9 points, with Stardew returning more light under the reference measurement.
Let tile and porcelain set the limits
Compare Debonair with the largest tile field before adding towels or bath accessories. The tile is the permanent color neighbor; textiles are flexible. Review the mirror view as well as the direct wall, since reflected surfaces can add more of the chosen hue to the apparent room.
Separate the palette from the moisture specification
Review the blue on a vertical panel from across the room; use its medium depth to separate the millwork. The undertones and neighboring colors covers that related choice. 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-9139 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. The trim color comparison covers that related choice. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Debonair SW-9139. The recorded LRV is 34. 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.

