Code SW 7631 (City Loft) reflects 70.54% of incident D65 light. Measured in CAM16-UCS uniform space, Sherwin-Williams City Loft (SW 7631) registers J'=89.0, a'=-0.15, and b'=3.64 with HSL (39°, 18%, 85%) and Helmholtz-Kohlrausch perceived value 87.5 L*_HK. Because SW 7631 carries a*=0.14 red-green and b*=5.03 yellow-blue balance at chroma C*=5.03, City Loft projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Sherwin-Williams SW 7631 predictably. Under 5000K noon daylight, City Loft (SW 7631) holds its native #E7D9C8 swatch; at 4000K cool office LED, SW 7631 adapts to #EDD7BF; at 3500K halogen, City Loft transitions to #F3D6BA; at 3000K residential LED, SW 7631 warms to #F9D4B4; and under 2700K evening bulbs, City Loft (SW 7631) settles at #FDD3B1.
When cross-matching Sherwin-Williams City Loft (SW 7631, #DFDAD1), Behr Empire Porcelain (T13-2, #E0DBD3, LRV 71%) scores ΔE2000=0.54 and CAM16=0.51, followed by Taupe Tease (N210-1, ΔE=0.96). In Benjamin Moore, Athena (858, #DDD9CE, LRV 69.57%) achieves ΔE2000=1.23 ahead of Pale Oak (OC-20, ΔE=1.23). Coordinate SW 7631 with High Reflective White (SW 7757) ceilings, Alabaster (SW 7008) trim, White Flour (SW 7102) hallways, and Pussywillow (SW 7643) accents.