Code SW 6205 (Comfort Gray) reflects 53.59% of incident D65 light. Measured in CAM16-UCS uniform space, Sherwin-Williams Comfort Gray (SW 6205) registers J'=80.7, a'=-4.09, and b'=2.75 with HSL (97°, 6%, 75%) and Helmholtz-Kohlrausch perceived value 78.6 L*_HK. Because SW 6205 carries a*=-3.2 red-green and b*=3.41 yellow-blue balance at chroma C*=4.68, Comfort Gray projects a warm soft green-beige character across drywall and millwork.
Thermal lighting shifts Sherwin-Williams SW 6205 predictably. Under 5000K noon daylight, Comfort Gray (SW 6205) holds its native #C5C2B3 swatch; at 4000K cool office LED, SW 6205 adapts to #CBC0AB; at 3500K halogen, Comfort Gray transitions to #D0BFA6; at 3000K residential LED, SW 6205 warms to #D6BEA1; and under 2700K evening bulbs, Comfort Gray (SW 6205) settles at #DABD9E.
When cross-matching Sherwin-Williams Comfort Gray (SW 6205, #BEC3BB), Behr Rhino (710E-3, #BDC2B9, LRV 53%) scores ΔE2000=0.54 and CAM16=0.55, followed by Celadon (T16-11, ΔE=0.95). In Benjamin Moore, Tranquility (AF-490, #BBC3BB, LRV 53.19%) achieves ΔE2000=1.33 ahead of Picnic Basket (CSP-730, ΔE=1.33). Coordinate SW 6205 with High Reflective White (SW 7757) ceilings, Extra White (SW 7006) trim, Green Trance (SW 6462) hallways, and Pure White (SW 7005) accents.