Comparison

Hidden Cove vs Spanish Fortress

Benjamin Moore CSP-1030 and Kilz TB-81, ΔE 1.91 apart

Benjamin Moore Hidden Cove CSP-1030 on a wall, hex #DED6BF
Hidden Cove Benjamin Moore CSP-1030
Kilz Spanish Fortress TB-81 on a wall, hex #E4D8C2
Spanish Fortress Kilz TB-81
Zeytin’s verdict · ΔE 1.91Twins, almost. Only daylight on a big wall tells them apart.

Benjamin Moore Hidden Cove (CSP-1030) and Kilz Spanish Fortress (TB-81) measure a delta-E of 1.91 apart. Spanish Fortress is 3.9 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 12.4 and 12.3. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Hidden Cove depth in Kilz's line, start from its LRV of 65.1 rather than matching by name.

Is Benjamin Moore Hidden Cove the same color as Kilz Spanish Fortress?

Not quite, but close - Benjamin Moore Hidden Cove and Kilz Spanish Fortress are delta-E 1.91 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Hidden Cove and Kilz Spanish Fortress?

The measured color distance between Benjamin Moore Hidden Cove and Kilz Spanish Fortress is delta-E 1.91.

Which is lighter, Benjamin Moore Hidden Cove or Kilz Spanish Fortress?

Kilz Spanish Fortress is lighter than Benjamin Moore Hidden Cove by 3.9 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.91 Hidden Cove and Spanish Fortress
LIGHTESTSpanish Fortress LRV 69.0
DARKESTHidden Cove LRV 65.1
SPREAD3.9LRV points

Side by side

measured values
Hidden Cove Spanish Fortress
Brand Benjamin Moore Kilz
Code CSP-1030 TB-81
Hex #DED6BF #E4D8C2
Light reflectance 65.1 69.0
Undertone yellow undertone yellow undertone
Chroma 12.4 12.3
Hue angle 95.0° 87.6°
Color family tan tan

Each on its own

full detail