Code SW 6455 (Fleeting Green) reflects 73.96% of incident D65 light. Measured in CAM16-UCS uniform space, Sherwin-Williams Fleeting Green (SW 6455) registers J'=90.3, a'=-6.19, and b'=2.85 with HSL (120°, 15%, 87%) and Helmholtz-Kohlrausch perceived value 89.5 L*_HK. Because SW 6455 carries a*=-5.16 red-green and b*=3.72 yellow-blue balance at chroma C*=6.36, Fleeting Green projects a warm soft green-beige character across drywall and millwork.
Thermal lighting shifts Sherwin-Williams SW 6455 predictably. Under 5000K noon daylight, Fleeting Green (SW 6455) holds its native #E0E1CF swatch; at 4000K cool office LED, SW 6455 adapts to #E7DFC6; at 3500K halogen, Fleeting Green transitions to #EDDEC0; at 3000K residential LED, SW 6455 warms to #F3DCBB; and under 2700K evening bulbs, Fleeting Green (SW 6455) settles at #F8DBB7.
When cross-matching Sherwin-Williams Fleeting Green (SW 6455, #D8E2D8), Behr River Mist (S410-1, #D6E1D4, LRV 73%) scores ΔE2000=1.39 and CAM16=1.25, followed by New Day (S420-1, ΔE=1.49). In Benjamin Moore, North Shore Green (456, #D5E0D5, LRV 72.28%) achieves ΔE2000=0.81 ahead of Silver Crest (1583, ΔE=1.86). Coordinate SW 6455 with High Reflective White (SW 7757) ceilings, Ibis White (SW 7000) trim, Comfort Gray (SW 6205) hallways, and Oyster Bay (SW 6206) accents.