Code S350-1A (Cool Honeydew) reflects 75% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Cool Honeydew (S350-1A) registers J'=90.9, a'=-1.79, and b'=7.13 with HSL (50°, 32%, 85%) and Helmholtz-Kohlrausch perceived value 90.1 L*_HK. Because S350-1A carries a*=-2.03 red-green and b*=10.27 yellow-blue balance at chroma C*=10.47, Cool Honeydew projects a warm soft green-beige character across drywall and millwork.
Thermal lighting shifts Behr S350-1A predictably. Under 5000K noon daylight, Cool Honeydew (S350-1A) holds its native #EDDFC4 swatch; at 4000K cool office LED, S350-1A adapts to #F4DEBB; at 3500K halogen, Cool Honeydew transitions to #F9DDB6; at 3000K residential LED, S350-1A warms to #FFDBB1; and under 2700K evening bulbs, Cool Honeydew (S350-1A) settles at #FFD9AD.
When cross-matching Behr Cool Honeydew (S350-1A, #E5E1CD), Benjamin Moore Lancaster White (OC-144, #E6E1CC, LRV 75.24%) scores ΔE2000=0.51 and CAM16=0.41, followed by Lancaster White (PM-31, ΔE=0.51). In Sherwin-Williams, Restoration Ivory (SW 6413, #E9E1CA, LRV 75.69%) achieves ΔE2000=1.89 ahead of Sagey (SW 6175, ΔE=1.96). Coordinate S350-1A with Ultra Pure White® (PPU18-6) ceilings, Celestial Glow (PWN-36) trim, Fortress Stone (PPU8-17) hallways, and Koala Bear (780D-4) accents.