Comparison

Summer Harvest vs Full Moon

Benjamin Moore CC-190 and Sherwin-Williams SW 6679, ΔE 1.83 apart

Benjamin Moore Summer Harvest CC-190 on a wall, hex #EEDFB7
Summer Harvest Benjamin Moore CC-190
Sherwin-Williams Full Moon SW 6679 on a wall, hex #F4E3BC
Full Moon Sherwin-Williams SW 6679
Zeytin’s verdict · ΔE 1.83Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Summer Harvest (CC-190) and Sherwin-Williams Full Moon (SW 6679) measure a delta-E of 1.83 apart. Full Moon is 7 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 21.5 and 21.2. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Summer Harvest depth in Sherwin-Williams's line, start from its LRV of 71.0 rather than matching by name.

Is Benjamin Moore Summer Harvest the same color as Sherwin-Williams Full Moon?

Not quite, but close - Benjamin Moore Summer Harvest and Sherwin-Williams Full Moon are delta-E 1.83 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Summer Harvest and Sherwin-Williams Full Moon?

The measured color distance between Benjamin Moore Summer Harvest and Sherwin-Williams Full Moon is delta-E 1.83.

Which is lighter, Benjamin Moore Summer Harvest or Sherwin-Williams Full Moon?

Sherwin-Williams Full Moon is lighter than Benjamin Moore Summer Harvest by 7 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.83 Summer Harvest and Full Moon
LIGHTESTFull Moon LRV 78.0
DARKESTSummer Harvest LRV 71.0
SPREAD7LRV points

Side by side

measured values
Summer Harvest Full Moon
Brand Benjamin Moore Sherwin-Williams
Code CC-190 SW 6679
Hex #EEDFB7 #F4E3BC
Light reflectance 71.0 78.0
Undertone yellow yellow
Chroma 21.5 21.2
Hue angle 92.8° 90.5°
Color family tan tan

Each on its own

full detail