Code SW 6820 (Inspired Lilac) reflects 70.86% of incident D65 light. Measured in CAM16-UCS uniform space, Sherwin-Williams Inspired Lilac (SW 6820) registers J'=89.4, a'=3.67, and b'=-5.29 with HSL (273°, 17%, 87%) and Helmholtz-Kohlrausch perceived value 88.1 L*_HK. Because SW 6820 carries a*=4.03 red-green and b*=-4.66 yellow-blue balance at chroma C*=6.16, Inspired Lilac projects a warm earthy warm taupe character across drywall and millwork.
Thermal lighting shifts Sherwin-Williams SW 6820 predictably. Under 5000K noon daylight, Inspired Lilac (SW 6820) holds its native #E7D8DB swatch; at 4000K cool office LED, SW 6820 adapts to #EDD6D1; at 3500K halogen, Inspired Lilac transitions to #F3D5CB; at 3000K residential LED, SW 6820 warms to #F9D3C6; and under 2700K evening bulbs, Inspired Lilac (SW 6820) settles at #FED2C2.
When cross-matching Sherwin-Williams Inspired Lilac (SW 6820, #DFD9E4), Behr Sweet Bianca (M560-1, #E2DEEA, LRV 75%) scores ΔE2000=1.4 and CAM16=1.82, followed by Spring Bouquet (S100-1, ΔE=1.68). In Benjamin Moore, Sugarplum (1394, #E3DCE8, LRV 73.29%) achieves ΔE2000=0.97 ahead of Touch Of Gray (2116-60, ΔE=1.94). Coordinate SW 6820 with High Reflective White (SW 7757) ceilings, Alabaster (SW 7008) trim, Grape Mist (SW 6548) hallways, and Swanky Gray (SW 6261) accents.