What 57 tells you about Upward
The published LRV of Sherwin-Williams Upward SW-6239 is 57. It describes light reflectance; it does not specify an undertone or predict the brightness of your room. Upward's denim-blue and gray character gives a clear color direction at a light-to-medium depth.
The choice beside white linen and pale oak
Pale oak and white linen can keep the room restrained, but the adjoining shaded area still needs to support the same blue impression.
Compare Upward and Stardew at equal size, first considering depth and then hue. A lighter blue, green or pink is still a colored surface. Use the LRV to organize the depth question without assuming that it measures saturation or predicts which hue the room will favor.
What the comparison can—and cannot—settle
Upward has an LRV of 57; Sherwin-Williams Stardew SW-9138 is 43. The difference is 14 points, with Upward returning more light under the reference measurement. Upward is a denim-like blue softened by gray. The value measures reflectance, so it cannot by itself identify an undertone, a coating finish or the amount of illumination needed in the room. The daylight and evening-light checks covers that related choice.
Review the blue in the room's weaker light before adding it to an open hall. Do not read LRV 57 as a percentage improvement in perceived room brightness. Make the decision with the board upright at the actual wall or cabinet position, including the least illuminated portion. The north-facing room assessment covers that related choice. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Upward SW-6239. The recorded LRV is 57. 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.