Upward (SW 6239) vs Krypton (SW 6247)
Quick decision
- Lighter
- Upward, LRV 57 vs 52.
- Warmer
- Krypton, both blue-gray (Lab b* -2.5 vs -4.7).
- North rooms
- Upward keeps more brightness (L* 76.4 vs 73.2 in north light); both drift gray about equally.
- Trim that works
- Sky High SW 6504, #DCE7E8, LRV 78: the Sherwin-Williams white closest in hue to both.
- Closeness
- deltaE 3.0, noticeably different. At 3.0, test both: on a full wall the difference will show.
See each color
Upward (SW 6239) is lighter than Krypton (SW 6247) and slightly cooler: LRV 57 vs 52, deltaE 3.0 (noticeably different).
Side by side
| Measure | Upward | Krypton | Gap |
|---|---|---|---|
| Brand | Sherwin-Williams | Sherwin-Williams | |
| Color code | SW 6239 | SW 6247 | |
| Hex | #BFC9D0 | #B8C0C3 | |
| RGB | 191, 201, 208 | 184, 192, 195 | |
| HSL | 205°, 15%, 78% | 196°, 8%, 74% | |
| LRV (light reflectance value) | 57 | 52 | +5 |
| Lab L* | 80.4 | 77.2 | +3.2 |
| Lab a* | -2.0 | -2.2 | +0.1 |
| Lab b* | -4.7 | -2.5 | −2.2 |
| Undertone | Cool | Neutral | |
| Temperature | neutral | neutral | |
| Color family | Gray | Gray |
Same paint, two kinds of light
Upward (SW 6239), published as #BFC9D0
#ADBFCE
#D2D3D0
Krypton (SW 6247), published as #B8C0C3
#A6B6C1
#CACAC3
These swatches and the rooms above are a simulation, not a measurement. How the visualizer works
Which should you pick
Rules of thumb computed from the LRV and Lab values in the table above; no room test was done.
- Pick Upward (SW 6239) for a small room or a north-facing room, because it is 5 LRV points lighter (57 vs 52), so it bounces back more of the limited light
- Pick Upward (SW 6239) for a south-facing room, because its Lab b* is -4.7 against -2.5, so it is the cooler of the two and offsets warm direct sun
- Pick Krypton (SW 6247) to warm a north-facing room, because it is the warmer of the two (Lab b* -2.5), which counters cool indirect light
Closest matches to Upward in other brands
Closest matches to Krypton in other brands
Common questions
- Is Upward the same color as Krypton?
- They are noticeably different: a CIEDE2000 difference of 3.0. Most people can see the difference between Upward and Krypton side by side.
- Which is lighter, Upward or Krypton?
- Upward, with an LRV of 57 against 52.
Full pages
Related comparisons
Sources: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0). Color differences are CIEDE2000 values computed by this site from the hex values (data snapshot 2026-10-01). Color names and codes belong to their manufacturers.