Code OC-9 (Ballet White) reflects 74.69% of incident D65 light. Measured in CAM16-UCS uniform space, Benjamin Moore Ballet White (OC-9) registers J'=90.7, a'=-1.01, and b'=5.94 with HSL (46°, 29%, 86%) and Helmholtz-Kohlrausch perceived value 89.8 L*_HK. Because OC-9 carries a*=-1.03 red-green and b*=8.43 yellow-blue balance at chroma C*=8.49, Ballet White projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Benjamin Moore OC-9 predictably. Under 5000K noon daylight, Ballet White (OC-9) holds its native #EDDEC7 swatch; at 4000K cool office LED, OC-9 adapts to #F4DDBE; at 3500K halogen, Ballet White transitions to #F9DCB8; at 3000K residential LED, OC-9 warms to #FFDAB3; and under 2700K evening bulbs, Ballet White (OC-9) settles at #FFD8B0.
When cross-matching Benjamin Moore Ballet White (OC-9, #E5E0D0), Behr Off White (73, #E7E2D2, LRV 76%) scores ΔE2000=0.45 and CAM16=0.62, followed by Confident White (GR-W12, ΔE=0.47). In Sherwin-Williams, Natural Choice (SW 7011, #E3DED0, LRV 73.28%) achieves ΔE2000=0.92 ahead of Nacre (SW 6154, ΔE=1.22). Coordinate OC-9 with Snow White (2122-70) ceilings, White (OC-151) trim, Paris Rain (1501) hallways, and Northern Cliffs (1536) accents.