Give this sample a clear job
Sample Sherwin-Williams Niebla Azul SW-9137 beside the fixed finishes, in the intended orientation and under normal room lighting. The trial should settle blue in both the sunlit wall and the shaded return . Niebla Azul has more reflectance than deep slate blues yet enough body to be a visible light-blue wall.
Why the warm linen and natural wood relationship matters
Natural wood and warm linen provide a reason to inspect both sunlit and shaded views rather than decide from a single cool-looking photo.
Niebla Azul has an LRV of 53; Sherwin-Williams Sleepy Blue SW-6225 is 58. The difference is 5 points, with Sleepy Blue returning more light under the reference measurement.
Keep the comparison fair
Keep the Niebla Azul sample broad enough to show its hue, with warm linen and natural wood beside it. Remove extra paint chips during the final review and restore the belongings that will remain. Approve the color on its own, rather than a preference that depends on an unchosen neighboring sample.
Approve the actual coating and the least favorable view
Check that the shaded wall retains an appealing blue before carrying it into an adjoining room. The undertones and neighboring colors covers that related choice. The trim color comparison covers that related choice.
Keep the approved dried board with the complete Sherwin-Williams SW-9137 product and finish specification. Follow the actual coating instructions for application, drying and preparation; the color name does not settle those requirements. The daylight and evening-light checks covers that related choice. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Niebla Azul SW-9137. The recorded LRV is 53. 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.

