Code HC-180 (Cliffside Gray) reflects 62.23% of incident D65 light. Measured in CAM16-UCS uniform space, Benjamin Moore Cliffside Gray (HC-180) registers J'=85.2, a'=-3.53, and b'=1.97 with HSL (100°, 6%, 80%) and Helmholtz-Kohlrausch perceived value 83.3 L*_HK. Because HC-180 carries a*=-2.46 red-green and b*=2.5 yellow-blue balance at chroma C*=3.51, Cliffside Gray projects a warm soft green-beige character across drywall and millwork.
Thermal lighting shifts Benjamin Moore HC-180 predictably. Under 5000K noon daylight, Cliffside Gray (HC-180) holds its native #D3CFC2 swatch; at 4000K cool office LED, HC-180 adapts to #DACDB9; at 3500K halogen, Cliffside Gray transitions to #DFCCB3; at 3000K residential LED, HC-180 warms to #E5CAAF; and under 2700K evening bulbs, Cliffside Gray (HC-180) settles at #EAC9AB.
When cross-matching Benjamin Moore Cliffside Gray (HC-180, #CCD0CA), Behr Silver Setting (PWL-89, #CACEC7, LRV 61%) scores ΔE2000=0.7 and CAM16=0.81, followed by Salt Glaze (PPU12-11, ΔE=1). In Sherwin-Williams, Sea Salt (SW 6204, #CDD2CA, LRV 63.37%) achieves ΔE2000=1.16 ahead of Silver Strand (SW 7057, ΔE=1.33). Coordinate HC-180 with Chantilly Lace (OC-65) ceilings, White (PM-2) trim, Decorator'S White (CC-20) hallways, and Snowfall White (2144-70) accents.