Comparison

Medici Ivory vs Buff Bluff

Sherwin-Williams SW 7558 and Vista Paint OW133, ΔE 1.03 apart

Sherwin-Williams Medici Ivory SW 7558 on a wall, hex #F3E9D7
Medici Ivory Sherwin-Williams SW 7558
Vista Paint Buff Bluff OW133 on a wall, hex #F3EBD8
Buff Bluff Vista Paint OW133
Zeytin’s verdict · ΔE 1.03Twins, almost. Only daylight on a big wall tells them apart.

Sherwin-Williams Medici Ivory (SW 7558) and Vista Paint Buff Bluff (OW133) measure a delta-E of 1.03 apart. Buff Bluff is 2 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 9.9 and 10.2. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Medici Ivory depth in Vista Paint's line, start from its LRV of 82.0 rather than matching by name.

Is Sherwin-Williams Medici Ivory the same color as Vista Paint Buff Bluff?

Not quite, but close - Sherwin-Williams Medici Ivory and Vista Paint Buff Bluff are delta-E 1.03 apart, close enough that most rooms would not show the difference.

What is the delta-E between Sherwin-Williams Medici Ivory and Vista Paint Buff Bluff?

The measured color distance between Sherwin-Williams Medici Ivory and Vista Paint Buff Bluff is delta-E 1.03.

Which is lighter, Sherwin-Williams Medici Ivory or Vista Paint Buff Bluff?

Vista Paint Buff Bluff is lighter than Sherwin-Williams Medici Ivory by 2 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.03 Medici Ivory and Buff Bluff
LIGHTESTBuff Bluff LRV 84.0
DARKESTMedici Ivory LRV 82.0
SPREAD2LRV points

Side by side

measured values
Medici Ivory Buff Bluff
Brand Sherwin-Williams Vista Paint
Code SW 7558 OW133
Hex #F3E9D7 #F3EBD8
Light reflectance 82.0 84.0
Undertone yellow undertone yellow undertone
Chroma 9.9 10.2
Hue angle 87.7° 92.6°
Color family tan tan

Each on its own

full detail