Porpoise and Urbane Bronze: the documented difference
Porpoise has an LRV of 13; Sherwin-Williams Urbane Bronze SW-7048 is 8. The difference is 5 points, with Porpoise returning more light under the reference measurement. Choose by the material relationship as well as the number. Porpoise is lighter than Urbane Bronze while remaining a deep gray-bronze option. Urbane Bronze is a dark brownish gray.
| Color | Brand / code | LRV |
|---|---|---|
| Porpoise | Sherwin-Williams SW-7047 | 13 |
| Urbane Bronze | Sherwin-Williams SW-7048 | 8 |
The choice beside cream limestone and walnut shelving
Cream limestone can define the built-in as a whole, whereas walnut shelves need a closer check against the painted interior surfaces.
Set up both candidates with cream limestone and walnut shelving. Use equal-sized boards with the intended finishes and place them in the same orientation. Do not put one directly beside a window and leave the other in shadow. A difference that follows the position rather than the board is a lighting observation, not evidence that the formula changed.
What the comparison can—and cannot—settle
For a second point of reference, Black Fox is recorded at LRV 7. The undertones and neighboring colors covers that related choice.
Check the outline of the shelving against the dark paint; keep depth where it clarifies the architecture. Assess Porpoise and Urbane Bronze alone as well as side by side. The unchosen board will not remain in the finished room, and a preference created only by that neighbor may not survive its removal. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Porpoise SW-7047. The recorded LRV is 13. 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.