Code 855 (Cloud Cover) reflects 80.5% of incident D65 light. Measured in CAM16-UCS uniform space, Benjamin Moore Cloud Cover (855) registers J'=93.1, a'=-1.54, and b'=3.04 with HSL (53°, 17%, 90%) and Helmholtz-Kohlrausch perceived value 92.2 L*_HK. Because 855 carries a*=-1.06 red-green and b*=4 yellow-blue balance at chroma C*=4.14, Cloud Cover projects a warm soft green-beige character across drywall and millwork.
Thermal lighting shifts Benjamin Moore 855 predictably. Under 5000K noon daylight, Cloud Cover (855) holds its native #F1E6D7 swatch; at 4000K cool office LED, 855 adapts to #F8E5CD; at 3500K halogen, Cloud Cover transitions to #FEE4C7; at 3000K residential LED, 855 warms to #FFE2C2; and under 2700K evening bulbs, Cloud Cover (855) settles at #FFE0BE.
When cross-matching Benjamin Moore Cloud Cover (855, #E9E8E0), Behr Diamonds Therapy (BWC-30, #E9E8E0, LRV 80%) scores ΔE2000=0 and CAM16=0, followed by White Moderne (PPU24-14, ΔE=0.43). In Sherwin-Williams, Spare White (SW 6203, #E4E4DD, LRV 77.26%) achieves ΔE2000=1.07 ahead of Alabaster (SW 7008, ΔE=1.25). Coordinate 855 with Snow White (2122-70) ceilings, Misty Gray (2124-60) trim, Stonington Gray (HC-170) hallways, and Gray Huskie (1473) accents.