Code SW 7028 (Incredible White) reflects 73.58% of incident D65 light. Measured in CAM16-UCS uniform space, Sherwin-Williams Incredible White (SW 7028) registers J'=90.4, a'=0.11, and b'=2.90 with HSL (35°, 18%, 87%) and Helmholtz-Kohlrausch perceived value 88.9 L*_HK. Because SW 7028 carries a*=0.48 red-green and b*=4.03 yellow-blue balance at chroma C*=4.06, Incredible White projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Sherwin-Williams SW 7028 predictably. Under 5000K noon daylight, Incredible White (SW 7028) holds its native #EBDCCE swatch; at 4000K cool office LED, SW 7028 adapts to #F2DBC5; at 3500K halogen, Incredible White transitions to #F7DABF; at 3000K residential LED, SW 7028 warms to #FDD8BA; and under 2700K evening bulbs, Incredible White (SW 7028) settles at #FFD7B6.
When cross-matching Sherwin-Williams Incredible White (SW 7028, #E3DED7), Behr Crème De La Crème (MQ3-33, #E2DED7, LRV 73%) scores ΔE2000=0.5 and CAM16=0.37, followed by Poetic Light (BWC-21, ΔE=0.57). In Benjamin Moore, White Winged Dove (1457, #E5E0DB, LRV 75.16%) achieves ΔE2000=1.12 ahead of Cloudy Gray (2107-70, ΔE=1.62). Coordinate SW 7028 with High Reflective White (SW 7757) ceilings, Pure White (SW 7005) trim, Silverplate (SW 7649) hallways, and Requisite Gray (SW 7023) accents.