Behr Blue Opal (PWN-27) records 81% LRV and 92.4 L*_HK lightness (#E4EAE8, RGB 228/234/232). Its CIELAB coordinates (L*=92.21, a*=-2.36, b*=0.27, C*=2.38, h°=173.5°) place PWN-27 in the Organic Sage Green-Grey class. Top cross-brand matches for Blue Opal (PWN-27) are Benjamin Moore Palest Pistachio (2122-60, ΔE=1.07) and Sherwin-Williams Snowdrop (SW 6511, ΔE=1.05).
Behr Blue Opal (PWN-27, #E4EAE8) 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) | Blue Opal (PWN-27) | #E4EAE8 | 81% | Organic Sage Green-Grey | 0.00 (Ref) |
| Benjamin Moore #1 | Palest Pistachio (2122-60) | #E9EFED | 85.14% | Organic Sage Green-Grey | ΔE 1.07 (97.8%) |
| Benjamin Moore #2 | Fanfare (874) | #E1E6E5 | 78.23% | Organic Sage Green-Grey | ΔE 1.11 (97.7%) |
| Sherwin-Williams #1 | Snowdrop (SW 6511) | #E0E8E7 | 79.28% | Organic Sage Green-Grey | ΔE 1.05 (97.8%) |
| Sherwin-Williams #2 | Rarified Air (SW 6525) | #E1E6E6 | 78.28% | Organic Sage Green-Grey | ΔE 1.46 (96.9%) |
Cross-room ΔE=1.07 equivalent for PWN-27: Palest Pistachio (2122-60) delivers +4.1 LRV points lighter than Blue Opal (PWN-27) with matched C*=2.37 saturation.
Cross-room ΔE=1.11 equivalent for PWN-27: Fanfare (874) delivers -2.8 LRV points deeper than Blue Opal (PWN-27) with -0.53 softer C*=1.85 chroma.
Cross-room ΔE=1.38 equivalent for PWN-27: Patriotic White (2135-70) delivers +2 LRV points lighter than Blue Opal (PWN-27) with +0.97 higher C*=3.35 chroma.
Cross-room ΔE=1.05 equivalent for PWN-27: Snowdrop (SW 6511) delivers -1.7 LRV points deeper than Blue Opal (PWN-27) with +0.5 higher C*=2.88 chroma.
Cross-room ΔE=1.46 equivalent for PWN-27: Rarified Air (SW 6525) delivers -2.7 LRV points deeper than Blue Opal (PWN-27) with -0.61 softer C*=1.77 chroma.
Cross-room ΔE=1.76 equivalent for PWN-27: Quicksilver (SW 6245) delivers -5.9 LRV points deeper than Blue Opal (PWN-27) with matched C*=2.08 saturation.
Coordinated ceiling, trim, wall, sightline, and accent pairings for Blue Opal (#E4EAE8, LRV 81%).
Blue Opal (PWN-27, h°=173.5°) tempers intense afternoon sunlight on Behr walls.
Warm American Cherry & Cognac Hickory next to PWN-27 (#E4EAE8)
2700K–3000K Warm LED for PWN-27 (4000K renders #F4E7D5)
Need Blue Opal (PWN-27, LRV 81%) brighter or deeper? Adjacent Behr fan-deck steps around #E4EAE8:
Calculate exact gallon volume for Behr Blue Opal (PWN-27) accounting for standard North American door (21 sq.ft.) and window (15 sq.ft.) deductions.
Code PWN-27 (Blue Opal) reflects 81% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Blue Opal (PWN-27) registers J'=93.3, a'=-4.19, and b'=-0.35 with HSL (160°, 12%, 91%) and Helmholtz-Kohlrausch perceived value 92.4 L*_HK. Because PWN-27 carries a*=-2.36 red-green and b*=0.27 yellow-blue balance at chroma C*=2.38, Blue Opal projects a cool organic sage green-grey character across drywall and millwork.
Thermal lighting shifts Behr PWN-27 predictably. Under 5000K noon daylight, Blue Opal (PWN-27) holds its native #ECE8DE swatch; at 4000K cool office LED, PWN-27 adapts to #F4E7D5; at 3500K halogen, Blue Opal transitions to #FAE6CE; at 3000K residential LED, PWN-27 warms to #FFE4C9; and under 2700K evening bulbs, Blue Opal (PWN-27) settles at #FFE2C5.
When cross-matching Behr Blue Opal (PWN-27, #E4EAE8), Benjamin Moore Palest Pistachio (2122-60, #E9EFED, LRV 85.14%) scores ΔE2000=1.07 and CAM16=1.51, followed by Fanfare (874, ΔE=1.11). In Sherwin-Williams, Snowdrop (SW 6511, #E0E8E7, LRV 79.28%) achieves ΔE2000=1.05 ahead of Rarified Air (SW 6525, ΔE=1.46). Coordinate PWN-27 with Shea (RD-W9) ceilings, Celestial Glow (PWN-36) trim, Fast As The Wind (PPU26-17) hallways, and French Silver (PPU18-05) accents.
Spectrophotometric answers for homeowners, interior designers, and painting contractors specifying Behr Blue Opal.
Behr Blue Opal (PWN-27) records an official Light Reflectance Value of 81% (#E4EAE8) and a Helmholtz-Kohlrausch perceived lightness of 92.4 L*_HK.
At 81% reflectance, Blue Opal (PWN-27) sits in the high-reflectance architectural tier, bouncing daylight across Behr walls while maintaining HSL (160°, 12%, 91%).
CIELAB telemetry (L*=92.21, a*=-2.36, b*=0.27) classifies Behr Blue Opal (PWN-27) as a Cool Organic Sage Green-Grey with C*=2.38 chroma and h°=173.5° hue.
Pair Blue Opal (PWN-27) with South & West Sun Exposure for PWN-27 (81% LRV) and Warm American Cherry & Cognac Hickory next to PWN-27 (#E4EAE8). Under 2700K evening bulbs, PWN-27 shifts from #E4EAE8 toward #FFE2C5.
Closest verified equivalents to Behr Blue Opal (PWN-27, #E4EAE8) are Benjamin Moore Palest Pistachio (2122-60, #E9EFED) at ΔE2000=1.07 and Sherwin-Williams Snowdrop (SW 6511, #E0E8E7) at ΔE2000=1.05.
Both 2122-60 and SW 6511 matches are verified against Blue Opal (PWN-27) in CIE ΔE2000 and CAM16-UCS space.
Alongside Behr Blue Opal (PWN-27, LRV 81%), our Ou-Luo harmony engine specifies Behr Celestial Glow (PWN-36, #EAEBE9, LRV 83%) in Semi-Gloss or Satin.
Pairing Celestial Glow (PWN-36) with Blue Opal (PWN-27) frames door casings and baseboards cleanly.