Code N340-2 (Dune Grass) reflects 56% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Dune Grass (N340-2) registers J'=82.0, a'=-1.09, and b'=7.47 with HSL (46°, 20%, 75%) and Helmholtz-Kohlrausch perceived value 80.3 L*_HK. Because N340-2 carries a*=-1.32 red-green and b*=10.78 yellow-blue balance at chroma C*=10.86, Dune Grass projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Behr N340-2 predictably. Under 5000K noon daylight, Dune Grass (N340-2) holds its native #D2C4A9 swatch; at 4000K cool office LED, N340-2 adapts to #D8C2A2; at 3500K halogen, Dune Grass transitions to #DDC19D; at 3000K residential LED, N340-2 warms to #E2C098; and under 2700K evening bulbs, Dune Grass (N340-2) settles at #E6BE95.
When cross-matching Behr Dune Grass (N340-2, #CBC5B1), Benjamin Moore Coastal Fog (976, #CAC4B0, LRV 55.35%) scores ΔE2000=0.25 and CAM16=0.34, followed by Coastal Fog (AC-1, ΔE=0.25). In Sherwin-Williams, Cargo Pants (SW 7738, #CDC4AE, LRV 55.72%) achieves ΔE2000=1.42 ahead of Ancient Marble (SW 6162, ΔE=1.79). Coordinate N340-2 with Polar Bear 1875 (1875) ceilings, Celestial Glow (PWN-36) trim, YL-W12 (YL-W12) hallways, and Lemon White (P300-1) accents.