Stardew and Upward: the documented difference
Stardew has an LRV of 43; Sherwin-Williams Upward SW-6239 is 57. The difference is 14 points, with Upward returning more light under the reference measurement. Choose by the material relationship as well as the number. Stardew is deeper than Upward, offering a more substantial slate-blue presence without reaching navy depth. Upward is a denim-like blue softened by gray.
| Color | Brand / code | LRV |
|---|---|---|
| Stardew | Sherwin-Williams SW-9138 | 43 |
| Upward | Sherwin-Williams SW-6239 | 57 |
The choice beside cream linen and oak furniture
Cream linen and oak create a calm setting, while morning and evening use determine which light conditions deserve the most weight.
Set up both candidates with cream linen and oak furniture. 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, Debonair is recorded at LRV 34. The undertones and neighboring colors covers that related choice.
Check the morning wall and evening seating corner separately; the useful blue is the one that works in both. Assess Stardew and Upward 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 Stardew SW-9138. The recorded LRV is 43. 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.

