Code SW 7570 (Egret White) reflects 69.94% of incident D65 light. Measured in CAM16-UCS uniform space, Sherwin-Williams Egret White (SW 7570) registers J'=88.8, a'=0.07, and b'=4.04 with HSL (37°, 20%, 84%) and Helmholtz-Kohlrausch perceived value 87.3 L*_HK. Because SW 7570 carries a*=0.32 red-green and b*=5.65 yellow-blue balance at chroma C*=5.66, Egret White projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Sherwin-Williams SW 7570 predictably. Under 5000K noon daylight, Egret White (SW 7570) holds its native #E6D8C6 swatch; at 4000K cool office LED, SW 7570 adapts to #EDD6BD; at 3500K halogen, Egret White transitions to #F3D5B8; at 3000K residential LED, SW 7570 warms to #F9D3B3; and under 2700K evening bulbs, Egret White (SW 7570) settles at #FDD2AF.
When cross-matching Sherwin-Williams Egret White (SW 7570, #DFD9CF), Behr Taupe Tease (N210-1, #E0D9CF, LRV 70%) scores ΔE2000=0.5 and CAM16=0.35, followed by Empire Porcelain (T13-2, ΔE=1.01). In Benjamin Moore, Athena (858, #DDD9CE, LRV 69.57%) achieves ΔE2000=1.25 ahead of Pale Oak (OC-20, ΔE=1.25). Coordinate SW 7570 with High Reflective White (SW 7757) ceilings, Alabaster (SW 7008) trim, White Flour (SW 7102) hallways, and Pussywillow (SW 7643) accents.