Code S400-2 (Comforting Green) reflects 72% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Comforting Green (S400-2) registers J'=89.5, a'=-6.90, and b'=5.30 with HSL (99°, 22%, 85%) and Helmholtz-Kohlrausch perceived value 88.8 L*_HK. Because S400-2 carries a*=-6.74 red-green and b*=7.05 yellow-blue balance at chroma C*=9.75, Comforting Green projects a warm soft green-beige character across drywall and millwork.
Thermal lighting shifts Behr S400-2 predictably. Under 5000K noon daylight, Comforting Green (S400-2) holds its native #DDDFC6 swatch; at 4000K cool office LED, S400-2 adapts to #E4DDBD; at 3500K halogen, Comforting Green transitions to #EADCB8; at 3000K residential LED, S400-2 warms to #F0DAB3; and under 2700K evening bulbs, Comforting Green (S400-2) settles at #F5D9AF.
When cross-matching Behr Comforting Green (S400-2, #D5E0CF), Benjamin Moore Mint Chocolate Chip (436, #D4DECB, LRV 70.63%) scores ΔE2000=0.93 and CAM16=1, followed by Fresh Dew (435, ΔE=1.87). In Sherwin-Williams, Gratifying Green (SW 6435, #DAE2CD, LRV 73.82%) achieves ΔE2000=1.87 ahead of Supreme Green (SW 6442, ΔE=2.36). Coordinate S400-2 with YL-W15 (YL-W15) ceilings, Maui Mist (BL-W10) trim, Flagstaff Green (N400-3) hallways, and Unwind (GR-W5) accents.