Code S280-1 (Buckwheat Flour) reflects 77% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Buckwheat Flour (S280-1) registers J'=92.0, a'=1.14, and b'=7.20 with HSL (36°, 50%, 87%) and Helmholtz-Kohlrausch perceived value 91.2 L*_HK. Because S280-1 carries a*=1.31 red-green and b*=10.87 yellow-blue balance at chroma C*=10.95, Buckwheat Flour projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Behr S280-1 predictably. Under 5000K noon daylight, Buckwheat Flour (S280-1) holds its native #F7E0C6 swatch; at 4000K cool office LED, S280-1 adapts to #FEDFBD; at 3500K halogen, Buckwheat Flour transitions to #FFDEB7; at 3000K residential LED, S280-1 warms to #FFDCB2; and under 2700K evening bulbs, Buckwheat Flour (S280-1) settles at #FFDAAF.
When cross-matching Behr Buckwheat Flour (S280-1, #EFE2CF), Benjamin Moore Antique White (909, #F2E5D3, LRV 79.88%) scores ΔE2000=0.79 and CAM16=1, followed by Antique White (OC-83, ΔE=0.79). In Sherwin-Williams, Casa Blanca (SW 7571, #EDE1CE, LRV 76.56%) achieves ΔE2000=0.54 ahead of White Hyacinth (SW 46, ΔE=0.82). Coordinate S280-1 with Bakery Box (BL-W9) ceilings, Maui Mist (BL-W10) trim, Merino Wool (HDC-NT-13) hallways, and Pasha Brown (MQ2-51) accents.