Code PWN-63 (Abalone Shell) reflects 73% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Abalone Shell (PWN-63) registers J'=90.3, a'=-0.35, and b'=2.05 with HSL (38°, 12%, 87%) and Helmholtz-Kohlrausch perceived value 88.8 L*_HK. Because PWN-63 carries a*=0.14 red-green and b*=2.81 yellow-blue balance at chroma C*=2.81, Abalone Shell projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Behr PWN-63 predictably. Under 5000K noon daylight, Abalone Shell (PWN-63) holds its native #E9DDD0 swatch; at 4000K cool office LED, PWN-63 adapts to #F0DBC7; at 3500K halogen, Abalone Shell transitions to #F5DAC1; at 3000K residential LED, PWN-63 warms to #FBD8BC; and under 2700K evening bulbs, Abalone Shell (PWN-63) settles at #FFD7B8.
When cross-matching Behr Abalone Shell (PWN-63, #E1DED9), Benjamin Moore White Winged Dove (1457, #E5E0DB, LRV 75.16%) scores ΔE2000=1.14 and CAM16=1.07, followed by Silver Bells (1458, ΔE=1.23). In Sherwin-Williams, Eider White (SW 7014, #E2DED8, LRV 73.45%) achieves ΔE2000=0.59 ahead of Snowfall (SW 6000, ΔE=0.6). Coordinate PWN-63 with Polar Bear 1875 (1875) ceilings, Silver Chalice (640E-1) trim, Ultra Pure White® (PR-W15) hallways, and Porpoise (790E-3) accents.