Upward and Sleepy Blue: the documented difference
Upward has an LRV of 57; Sherwin-Williams Sleepy Blue SW-6225 is 58. The difference is 1 points, with Sleepy Blue returning more light under the reference measurement. Choose by the material relationship as well as the number. Upward's denim-blue and gray character gives a clear color direction at a light-to-medium depth. Sleepy Blue is a light blue described as warm by Sherwin-Williams.
| Color | Brand / code | LRV |
|---|---|---|
| Upward | Sherwin-Williams SW-6239 | 57 |
| Sleepy Blue | Sherwin-Williams SW-6225 | 58 |
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.
Set up both candidates with white linen and pale oak. 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
The alternative Stardew has an LRV of 43. The undertones and neighboring colors covers that related choice.
Review the blue in the room's weaker light before adding it to an open hall. Assess Upward and Sleepy Blue 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 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.