Comparison

Hawthorne Yellow vs Dayroom Yellow

Benjamin Moore HC-4 and Farrow & Ball 233, ΔE 1.37 apart

Benjamin Moore Hawthorne Yellow HC-4 on a wall, hex #F5E1A4
Hawthorne Yellow Benjamin Moore HC-4
Farrow & Ball Dayroom Yellow 233 on a wall, hex #F2E0A1
Dayroom Yellow Farrow & Ball 233
Zeytin’s verdict · ΔE 1.37Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Hawthorne Yellow (HC-4) and Farrow & Ball Dayroom Yellow (233) measure a delta-E of 1.37 apart. Dayroom Yellow is 3.5 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 32.4 and 33.3. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Hawthorne Yellow depth in Farrow & Ball's line, start from its LRV of 71.3 rather than matching by name.

Is Benjamin Moore Hawthorne Yellow the same color as Farrow & Ball Dayroom Yellow?

Not quite, but close - Benjamin Moore Hawthorne Yellow and Farrow & Ball Dayroom Yellow are delta-E 1.37 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Hawthorne Yellow and Farrow & Ball Dayroom Yellow?

The measured color distance between Benjamin Moore Hawthorne Yellow and Farrow & Ball Dayroom Yellow is delta-E 1.37.

Which is lighter, Benjamin Moore Hawthorne Yellow or Farrow & Ball Dayroom Yellow?

Farrow & Ball Dayroom Yellow is lighter than Benjamin Moore Hawthorne Yellow by 3.5 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.37 Hawthorne Yellow and Dayroom Yellow
LIGHTESTDayroom Yellow LRV 74.8
DARKESTHawthorne Yellow LRV 71.3
SPREAD3.5LRV points

Side by side

measured values
Hawthorne Yellow Dayroom Yellow
Brand Benjamin Moore Farrow & Ball
Code HC-4 233
Hex #F5E1A4 #F2E0A1
Light reflectance 71.3 74.8
Undertone yellow yellow
Chroma 32.4 33.3
Hue angle 93.4° 95.0°
Color family yellow yellow

Each on its own

full detail