Comparison

Gray Screen vs Where there is Smoke

Sherwin-Williams SW 7071 and Vista Paint 8258, ΔE 1.41 apart

Sherwin-Williams Gray Screen SW 7071 on a wall, hex #C6CACA
Gray Screen Sherwin-Williams SW 7071
Vista Paint Where there is Smoke 8258 on a wall, hex #C9CECE
Where there is Smoke Vista Paint 8258
Zeytin’s verdict · ΔE 1.41Twins, almost. Only daylight on a big wall tells them apart.

Sherwin-Williams Gray Screen (SW 7071) and Vista Paint Where there is Smoke (8258) measure a delta-E of 1.41 apart. They sit within 0.5 LRV points of each other, so neither will look brighter than the other on the same wall. Both carry a similar amount of color, at chroma 1.5 and 1.8. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Gray Screen depth in Vista Paint's line, start from its LRV of 58.5 rather than matching by name.

Is Sherwin-Williams Gray Screen the same color as Vista Paint Where there is Smoke?

Not quite, but close - Sherwin-Williams Gray Screen and Vista Paint Where there is Smoke are delta-E 1.41 apart, close enough that most rooms would not show the difference.

What is the delta-E between Sherwin-Williams Gray Screen and Vista Paint Where there is Smoke?

The measured color distance between Sherwin-Williams Gray Screen and Vista Paint Where there is Smoke is delta-E 1.41.

CLOSEST PAIRΔE 1.41 Gray Screen and Where there is Smoke
LIGHTESTWhere there is Smoke LRV 59.0
DARKESTGray Screen LRV 58.5
SPREAD0.5LRV points

Side by side

measured values
Gray Screen Where there is Smoke
Brand Sherwin-Williams Vista Paint
Code SW 7071 8258
Hex #C6CACA #C9CECE
Light reflectance 58.5 59.0
Undertone cool teal-gray cool teal-gray
Chroma 1.5 1.8
Hue angle 199.7° 199.6°
Color family gray gray

Each on its own

full detail