Code PPU7-13 (Coastal Beige) reflects 83% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Coastal Beige (PPU7-13) registers J'=94.1, a'=-1.26, and b'=6.48 with HSL (47°, 43%, 90%) and Helmholtz-Kohlrausch perceived value 93.7 L*_HK. Because PPU7-13 carries a*=-1.35 red-green and b*=9.33 yellow-blue balance at chroma C*=9.43, Coastal Beige projects a warm warm yellow-cream character across drywall and millwork.
Thermal lighting shifts Behr PPU7-13 predictably. Under 5000K noon daylight, Coastal Beige (PPU7-13) holds its native #F8E9D0 swatch; at 4000K cool office LED, PPU7-13 adapts to #FFE8C7; at 3500K halogen, Coastal Beige transitions to #FFE7C0; at 3000K residential LED, PPU7-13 warms to #FFE5BB; and under 2700K evening bulbs, Coastal Beige (PPU7-13) settles at #FFE3B7.
When cross-matching Behr Coastal Beige (PPU7-13, #F0EBD9), Benjamin Moore Marble White (942, #F0EBD7, LRV 83.06%) scores ΔE2000=0.76 and CAM16=0.65, followed by Marble White (OC-34, ΔE=0.76). In Sherwin-Williams, Restful White (SW 7563, #EEE8D7, LRV 80.99%) achieves ΔE2000=0.91 ahead of Classic Light Buff (SW 50, ΔE=1.84). Coordinate PPU7-13 with Polar Bear (W-F-200) ceilings, Vibrant White (BWC-12) trim, Ocean Pearl (780C-3) hallways, and Historical Ruins (BXC-19) accents.