Krypton and North Star: the documented difference
Krypton has an LRV of 52; Sherwin-Williams North Star SW-6246 is 62. The difference is 10 points, with North Star returning more light under the reference measurement. Choose by the material relationship as well as the number. Krypton's slate-gray undertone tempers its blue, providing a specific direction to compare against paler Misty or North Star. North Star is an airy blue softened by slate gray.
| Color | Brand / code | LRV |
|---|---|---|
| Krypton | Sherwin-Williams SW-6247 | 52 |
| North Star | Sherwin-Williams SW-6246 | 62 |
The choice beside brushed nickel and warm oak
Brushed nickel favors one part of the palette while oak supplies warmth, so judging against metal alone would be incomplete.
Set up both candidates with brushed nickel and warm 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 Misty has an LRV of 64.
Use both materials in the test rather than deciding from the metal alone. Assess Krypton and North Star 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 Krypton SW-6247. The recorded LRV is 52. 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.