The floor finish is the reference
Judge Niebla Azul against your actual wood finish, not a generic wood species label. The starting material direction here is warm linen and natural wood. Niebla Azul has more reflectance than deep slate blues yet enough body to be a visible light-blue wall.
Natural wood and warm linen provide a reason to inspect both sunlit and shaded views rather than decide from a single cool-looking photo.
Test the dominant wood color, not one grain line
Use the broad background of the timber to assess Niebla Azul, rather than matching one grain streak. Wood contributes color as well as texture. Decide whether the paint should contrast with that warmth or repeat it, keeping the dominant fabric in the same view.
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.
The condition for keeping Niebla Azul
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 Niebla Azul board vertical at the floor edge. A match to one pale grain line can misrepresent the dominant color across the installed floor. Judge the broad timber background from standing height. If the floor will be refinished, repeat the comparison with the approved new stain sample before ordering the wall paint. The coordinating color options 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.