Code ICC-11 (Designer White) reflects 74% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Designer White (ICC-11) registers J'=90.5, a'=0.65, and b'=5.17 with HSL (35°, 31%, 86%) and Helmholtz-Kohlrausch perceived value 89.3 L*_HK. Because ICC-11 carries a*=0.87 red-green and b*=7.46 yellow-blue balance at chroma C*=7.51, Designer White projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Behr ICC-11 predictably. Under 5000K noon daylight, Designer White (ICC-11) holds its native #EFDCC8 swatch; at 4000K cool office LED, ICC-11 adapts to #F5DBBF; at 3500K halogen, Designer White transitions to #FBDAB9; at 3000K residential LED, ICC-11 warms to #FFD8B4; and under 2700K evening bulbs, Designer White (ICC-11) settles at #FFD7B1.
When cross-matching Behr Designer White (ICC-11, #E7DED1), Benjamin Moore Ionic Column (1016, #E7DDCF, LRV 73.4%) scores ΔE2000=0.55 and CAM16=0.5, followed by Ice Breaker (CC-428, ΔE=0.55). In Sherwin-Williams, Pacer White (SW 6098, #E5DDD0, LRV 73.09%) achieves ΔE2000=0.56 ahead of Divine White (SW 6105, ΔE=0.93). Coordinate ICC-11 with Frost Bl-w15 (BL-W15) ceilings, White Glove (W-D-610) trim, Creamy Mushroom (PPU5-13) hallways, and Park Avenue (MQ2-55) accents.