Comparison

Sea Star vs Delft

Benjamin Moore 2123-30 and Sherwin-Williams SW 9134, ΔE 1.09 apart

Benjamin Moore Sea Star 2123-30 on a wall, hex #889E9E
Sea Star Benjamin Moore 2123-30
Sherwin-Williams Delft SW 9134 on a wall, hex #8B9FA0
Delft Sherwin-Williams SW 9134
Zeytin’s verdict · ΔE 1.09Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Sea Star (2123-30) and Sherwin-Williams Delft (SW 9134) measure a delta-E of 1.09 apart. They sit within 0.2 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 8.1 and 7.4. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Delft depth in Benjamin Moore's line, start from its LRV of 32.8 rather than matching by name.

Is Benjamin Moore Sea Star the same color as Sherwin-Williams Delft?

Not quite, but close - Benjamin Moore Sea Star and Sherwin-Williams Delft are delta-E 1.09 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Sea Star and Sherwin-Williams Delft?

The measured color distance between Benjamin Moore Sea Star and Sherwin-Williams Delft is delta-E 1.09.

CLOSEST PAIRΔE 1.09 Sea Star and Delft
LIGHTESTSea Star LRV 33.0
DARKESTDelft LRV 32.8
SPREAD0.2LRV points

Side by side

measured values
Sea Star Delft
Brand Benjamin Moore Sherwin-Williams
Code 2123-30 SW 9134
Hex #889E9E #8B9FA0
Light reflectance 33.0 32.8
Undertone teal undertone teal undertone
Chroma 8.1 7.4
Hue angle 198.7° 203.1°
Color family teal teal

Each on its own

full detail