Code SW 6140 (Moderate White) reflects 74.28% of incident D65 light. Measured in CAM16-UCS uniform space, Sherwin-Williams Moderate White (SW 6140) registers J'=90.6, a'=1.03, and b'=5.91 with HSL (35°, 37%, 86%) and Helmholtz-Kohlrausch perceived value 89.5 L*_HK. Because SW 6140 carries a*=1.25 red-green and b*=8.69 yellow-blue balance at chroma C*=8.78, Moderate White projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Sherwin-Williams SW 6140 predictably. Under 5000K noon daylight, Moderate White (SW 6140) holds its native #F1DCC6 swatch; at 4000K cool office LED, SW 6140 adapts to #F7DBBD; at 3500K halogen, Moderate White transitions to #FDDAB8; at 3000K residential LED, SW 6140 warms to #FFD8B2; and under 2700K evening bulbs, Moderate White (SW 6140) settles at #FFD6AF.
When cross-matching Sherwin-Williams Moderate White (SW 6140, #E9DECF), Behr Cinnamon Cake (W-F-220, #E8DDCF, LRV 73%) scores ΔE2000=0.48 and CAM16=0.44, followed by White Mocha (OR-W11, ΔE=0.64). In Benjamin Moore, First Crush (CSP-310, #E8DECF, LRV 74.1%) achieves ΔE2000=0.5 ahead of Ionic Column (1016, ΔE=0.55). Coordinate SW 6140 with High Reflective White (SW 7757) ceilings, Arcade White (SW 7100) trim, Skyline Steel (SW 1015) hallways, and Analytical Gray (SW 7051) accents.