Comparison

Museum Piece vs Ashford

Benjamin Moore CSP-40 and Vista Paint 8433, ΔE 1.97 apart

Benjamin Moore Museum Piece CSP-40 on a wall, hex #B0ACA3
Museum Piece Benjamin Moore CSP-40
Vista Paint Ashford 8433 on a wall, hex #ABA79D
Ashford Vista Paint 8433
Zeytin’s verdict · ΔE 1.97Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Museum Piece (CSP-40) and Vista Paint Ashford (8433) measure a delta-E of 1.97 apart. Museum Piece is 3.5 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 5.1 and 5.7. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Ashford depth in Benjamin Moore's line, start from its LRV of 38.0 rather than matching by name.

Is Benjamin Moore Museum Piece the same color as Vista Paint Ashford?

Not quite, but close - Benjamin Moore Museum Piece and Vista Paint Ashford are delta-E 1.97 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Museum Piece and Vista Paint Ashford?

The measured color distance between Benjamin Moore Museum Piece and Vista Paint Ashford is delta-E 1.97.

Which is lighter, Benjamin Moore Museum Piece or Vista Paint Ashford?

Benjamin Moore Museum Piece is lighter than Vista Paint Ashford by 3.5 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.97 Museum Piece and Ashford
LIGHTESTMuseum Piece LRV 41.5
DARKESTAshford LRV 38.0
SPREAD3.5LRV points

Side by side

measured values
Museum Piece Ashford
Brand Benjamin Moore Vista Paint
Code CSP-40 8433
Hex #B0ACA3 #ABA79D
Light reflectance 41.5 38.0
Undertone yellow cast yellow cast
Chroma 5.1 5.7
Hue angle 92.2° 93.7°
Color family gray gray

Each on its own

full detail