Code PR-W8 (Ambience White) reflects 83.7% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Ambience White (PR-W8) registers J'=94.4, a'=-1.77, and b'=-0.86 with HSL (180°, 3%, 92%) and Helmholtz-Kohlrausch perceived value 93.4 L*_HK. Because PR-W8 carries a*=-0.33 red-green and b*=-0.12 yellow-blue balance at chroma C*=0.35, Ambience White projects a neutral crisp neutral true white/grey character across drywall and millwork.
Thermal lighting shifts Behr PR-W8 predictably. Under 5000K noon daylight, Ambience White (PR-W8) holds its native #F3EAE2 swatch; at 4000K cool office LED, PR-W8 adapts to #FBE9D8; at 3500K halogen, Ambience White transitions to #FFE8D2; at 3000K residential LED, PR-W8 warms to #FFE6CC; and under 2700K evening bulbs, Ambience White (PR-W8) settles at #FFE4C8.
When cross-matching Behr Ambience White (PR-W8, #EBECEC), Benjamin Moore Misty Gray (2124-60, #E8EBEA, LRV 82.5%) scores ΔE2000=1.28 and CAM16=1.21, followed by Ultra White (CC-10, ΔE=1.33). In Sherwin-Williams, Ceiling Bright White (SW 7007, #E9EBE7, LRV 82.53%) achieves ΔE2000=2.29 ahead of Ice Cube (SW 6252, ΔE=2.39). Coordinate PR-W8 with Polar Bear (W-F-200) ceilings, Vibrant White (BWC-12) trim, Manhattan Mist (760E-2) hallways, and High Speed Access (N530-3) accents.