Code 2126-70 (Chalk White) reflects 84.05% of incident D65 light. Measured in CAM16-UCS uniform space, Benjamin Moore Chalk White (2126-70) registers J'=94.5, a'=-2.90, and b'=0.07 with HSL (140°, 8%, 92%) and Helmholtz-Kohlrausch perceived value 93.6 L*_HK. Because 2126-70 carries a*=-1.36 red-green and b*=0.62 yellow-blue balance at chroma C*=1.49, Chalk White projects a cool organic sage green-grey character across drywall and millwork.
Thermal lighting shifts Benjamin Moore 2126-70 predictably. Under 5000K noon daylight, Chalk White (2126-70) holds its native #F2EBE1 swatch; at 4000K cool office LED, 2126-70 adapts to #FAEAD8; at 3500K halogen, Chalk White transitions to #FFE9D1; at 3000K residential LED, 2126-70 warms to #FFE7CC; and under 2700K evening bulbs, Chalk White (2126-70) settles at #FFE5C8.
When cross-matching Benjamin Moore Chalk White (2126-70, #EAEDEB), Behr Vibrant White (BWC-12, #EAEDEB, LRV 84%) scores ΔE2000=0 and CAM16=0, followed by Silver Sky (W-F-510, ΔE=0.65). In Sherwin-Williams, Ceiling Bright White (SW 7007, #E9EBE7, LRV 82.53%) achieves ΔE2000=1.1 ahead of Extra White (SW 7006, ΔE=1.66). Coordinate 2126-70 with Distant Gray (OC-68) ceilings, White (PM-2) trim, Cliffside Gray (HC-180) hallways, and Coventry Gray (HC-169) accents.