Behr Diamond Light (580C-1) records 79% LRV and 91.6 L*_HK lightness (#DFE7EC, RGB 223/231/236). Its CIELAB coordinates (L*=91.19, a*=-1.74, b*=-3.35, C*=3.77, h°=242.6°) place 580C-1 in the Cool Coastal Blue-Grey class. Top cross-brand matches for Diamond Light (580C-1) are Benjamin Moore Lily White (2128-70, ΔE=1.57) and Sherwin-Williams Rarified Air (SW 6525, ΔE=2.54).
Behr Diamond Light (580C-1, #DFE7EC) is compared against competitor swatches under ISO/CIE 11664-6 (ΔE2000) and ASTM E308.
| Role / Brand | Paint Color Name & Code | HEX Code | LRV % | Undertone Profile | CIE ΔE 2000 |
|---|---|---|---|---|---|
| SOURCE (Behr) | Diamond Light (580C-1) | #DFE7EC | 79% | Cool Coastal Blue-Grey | 0.00 (Ref) |
| Benjamin Moore #1 | Lily White (2128-70) | #E3E9EB | 80.54% | Cool Coastal Blue-Grey | ΔE 1.57 (96.7%) |
| Benjamin Moore #2 | Silver Cloud (2129-70) | #DBE3E5 | 75.58% | Cool Coastal Blue-Grey | ΔE 1.80 (96.2%) |
| Sherwin-Williams #1 | Rarified Air (SW 6525) | #E1E6E6 | 78.28% | Organic Sage Green-Grey | ΔE 2.54 (94.7%) |
| Sherwin-Williams #2 | Sky High (SW 6504) | #DCE7E8 | 78.1% | Cool Coastal Blue-Grey | ΔE 2.74 (94.2%) |
Cross-room ΔE=1.57 equivalent for 580C-1: Lily White (2128-70) delivers +1.5 LRV points lighter than Diamond Light (580C-1) with -1.44 softer C*=2.33 chroma.
Cross-room ΔE=1.8 equivalent for 580C-1: Silver Cloud (2129-70) delivers -3.4 LRV points deeper than Diamond Light (580C-1) with -0.79 softer C*=2.98 chroma.
Cross-room ΔE=1.84 equivalent for 580C-1: First Snowfall (1618) delivers -5.3 LRV points deeper than Diamond Light (580C-1) with -1.15 softer C*=2.62 chroma.
Visual ΔE=2.54 alternative to 580C-1: Rarified Air (SW 6525) delivers identical 78.28% reflectance to 580C-1 with -2 softer C*=1.77 chroma.
Visual ΔE=2.74 alternative to 580C-1: Sky High (SW 6504) delivers identical 78.1% reflectance to 580C-1 with matched C*=3.89 saturation.
Visual ΔE=2.8 alternative to 580C-1: Icicle (SW 6238) delivers -5.8 LRV points deeper than Diamond Light (580C-1) with -2.26 softer C*=1.51 chroma.
Coordinated ceiling, trim, wall, sightline, and accent pairings for Diamond Light (#DFE7EC, LRV 79%).
Diamond Light (580C-1, h°=242.6°) tempers intense afternoon sunlight on Behr walls.
Warm American Cherry & Cognac Hickory next to 580C-1 (#DFE7EC)
2700K–3000K Warm LED for 580C-1 (4000K renders #EFE4D9)
Need Diamond Light (580C-1, LRV 79%) brighter or deeper? Adjacent Behr fan-deck steps around #DFE7EC:
Calculate exact gallon volume for Behr Diamond Light (580C-1) accounting for standard North American door (21 sq.ft.) and window (15 sq.ft.) deductions.
Code 580C-1 (Diamond Light) reflects 79% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Diamond Light (580C-1) registers J'=92.5, a'=-3.96, and b'=-4.60 with HSL (203°, 25%, 90%) and Helmholtz-Kohlrausch perceived value 91.6 L*_HK. Because 580C-1 carries a*=-1.74 red-green and b*=-3.35 yellow-blue balance at chroma C*=3.77, Diamond Light projects a cool cool coastal blue-grey character across drywall and millwork.
Thermal lighting shifts Behr 580C-1 predictably. Under 5000K noon daylight, Diamond Light (580C-1) holds its native #E7E5E2 swatch; at 4000K cool office LED, 580C-1 adapts to #EFE4D9; at 3500K halogen, Diamond Light transitions to #F4E3D2; at 3000K residential LED, 580C-1 warms to #FBE1CD; and under 2700K evening bulbs, Diamond Light (580C-1) settles at #FFDFC9.
When cross-matching Behr Diamond Light (580C-1, #DFE7EC), Benjamin Moore Lily White (2128-70, #E3E9EB, LRV 80.54%) scores ΔE2000=1.57 and CAM16=2.03, followed by Silver Cloud (2129-70, ΔE=1.8). In Sherwin-Williams, Rarified Air (SW 6525, #E1E6E6, LRV 78.28%) achieves ΔE2000=2.54 ahead of Sky High (SW 6504, ΔE=2.74). Coordinate 580C-1 with Ultra Pure White (50) ceilings, Vibrant White (BWC-12) trim, Journey's End (S520-2) hallways, and Stargazer (N510-3) accents.
Spectrophotometric answers for homeowners, interior designers, and painting contractors specifying Behr Diamond Light.
Behr Diamond Light (580C-1) records an official Light Reflectance Value of 79% (#DFE7EC) and a Helmholtz-Kohlrausch perceived lightness of 91.6 L*_HK.
At 79% reflectance, Diamond Light (580C-1) sits in the high-reflectance architectural tier, bouncing daylight across Behr walls while maintaining HSL (203°, 25%, 90%).
CIELAB telemetry (L*=91.19, a*=-1.74, b*=-3.35) classifies Behr Diamond Light (580C-1) as a Cool Cool Coastal Blue-Grey with C*=3.77 chroma and h°=242.6° hue.
Pair Diamond Light (580C-1) with South & West Sun Exposure for 580C-1 (79% LRV) and Warm American Cherry & Cognac Hickory next to 580C-1 (#DFE7EC). Under 2700K evening bulbs, 580C-1 shifts from #DFE7EC toward #FFDFC9.
Closest verified equivalents to Behr Diamond Light (580C-1, #DFE7EC) are Benjamin Moore Lily White (2128-70, #E3E9EB) at ΔE2000=1.57 and Sherwin-Williams Rarified Air (SW 6525, #E1E6E6) at ΔE2000=2.54.
Both 2128-70 and SW 6525 matches are verified against Diamond Light (580C-1) in CIE ΔE2000 and CAM16-UCS space.
Alongside Behr Diamond Light (580C-1, LRV 79%), our Ou-Luo harmony engine specifies Behr Vibrant White (BWC-12, #EAEDEB, LRV 84%) in Semi-Gloss or Satin.
Pairing Vibrant White (BWC-12) with Diamond Light (580C-1) frames door casings and baseboards cleanly.