Code W-D-500 (Cascade White) reflects 87% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Cascade White (W-D-500) registers J'=95.6, a'=-4.39, and b'=1.59 with HSL (120°, 19%, 94%) and Helmholtz-Kohlrausch perceived value 95.2 L*_HK. Because W-D-500 carries a*=-3.06 red-green and b*=2.2 yellow-blue balance at chroma C*=3.77, Cascade White projects a warm soft green-beige character across drywall and millwork.
Thermal lighting shifts Behr W-D-500 predictably. Under 5000K noon daylight, Cascade White (W-D-500) holds its native #F5F0E2 swatch; at 4000K cool office LED, W-D-500 adapts to #FCEFD8; at 3500K halogen, Cascade White transitions to #FFEED2; at 3000K residential LED, W-D-500 warms to #FFECCC; and under 2700K evening bulbs, Cascade White (W-D-500) settles at #FFEAC8.
When cross-matching Behr Cascade White (W-D-500, #ECF2EC), Benjamin Moore Snow Angel (841, #EAF0E9, LRV 85.71%) scores ΔE2000=0.63 and CAM16=0.76, followed by Aloe Vera (844, ΔE=0.93). In Sherwin-Williams, Glimmer (SW 6476, #E0E7E2, LRV 78.48%) achieves ΔE2000=2.45 ahead of Extra White (SW 7006, ΔE=2.47). Coordinate W-D-500 with Polar Bear (W-F-200) ceilings, Silver Chalice (640E-1) trim, Salt Glaze (PPU12-11) hallways, and Celadon (T16-11) accents.