Behr Coastal Mist (520E-1) records 78% LRV and 91.3 L*_HK lightness (#D2E8EC, RGB 210/232/236). Its CIELAB coordinates (L*=90.54, a*=-6.45, b*=-4.41, C*=7.81, h°=214.4°) place 520E-1 in the Cool Coastal Blue-Grey class. Top cross-brand matches for Coastal Mist (520E-1) are Benjamin Moore Icy Blue (2057-70, ΔE=0.8) and Sherwin-Williams Bravo Blue (SW 6784, ΔE=1).
Behr Coastal Mist (520E-1, #D2E8EC) 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) | Coastal Mist (520E-1) | #D2E8EC | 78% | Cool Coastal Blue-Grey | 0.00 (Ref) |
| Benjamin Moore #1 | Icy Blue (2057-70) | #D5EBEE | 79.54% | Cool Coastal Blue-Grey | ΔE 0.80 (98.3%) |
| Benjamin Moore #2 | Blue Angel (2058-70) | #D2EAF0 | 78.61% | Cool Coastal Blue-Grey | ΔE 1.01 (97.9%) |
| Sherwin-Williams #1 | Bravo Blue (SW 6784) | #D3E7E9 | 76.72% | Cool Coastal Blue-Grey | ΔE 1.00 (97.9%) |
| Sherwin-Williams #2 | Aviary Blue (SW 6778) | #C6E3E8 | 72.52% | Cool Coastal Blue-Grey | ΔE 2.53 (94.7%) |
Sub-threshold ΔE=0.8 match for 520E-1: Icy Blue (2057-70) delivers +1.5 LRV points lighter than Coastal Mist (520E-1) with matched C*=7.71 saturation.
Cross-room ΔE=1.01 equivalent for 520E-1: Blue Angel (2058-70) delivers identical 78.61% reflectance to 520E-1 with +0.9 higher C*=8.71 chroma.
Cross-room ΔE=1.1 equivalent for 520E-1: Morning Sky Blue (2053-70) delivers +1 LRV points lighter than Coastal Mist (520E-1) with -0.83 softer C*=6.98 chroma.
Cross-room ΔE=1 equivalent for 520E-1: Bravo Blue (SW 6784) delivers -1.3 LRV points deeper than Coastal Mist (520E-1) with -0.81 softer C*=7 chroma.
Visual ΔE=2.53 alternative to 520E-1: Aviary Blue (SW 6778) delivers -5.5 LRV points deeper than Coastal Mist (520E-1) with +2.39 higher C*=10.2 chroma.
Visual ΔE=2.78 alternative to 520E-1: Byte Blue (SW 6498) delivers -9.8 LRV points deeper than Coastal Mist (520E-1) with matched C*=8.21 saturation.
Coordinated ceiling, trim, wall, sightline, and accent pairings for Coastal Mist (#D2E8EC, LRV 78%).
Coastal Mist (520E-1, h°=214.4°) tempers intense afternoon sunlight on Behr walls.
Honey Red Oak & Amber Maple balanced by Coastal Mist (520E-1)
2700K–3000K Warm LED for 520E-1 (4000K renders #E2E5D9)
Need Coastal Mist (520E-1, LRV 78%) brighter or deeper? Adjacent Behr fan-deck steps around #D2E8EC:
Calculate exact gallon volume for Behr Coastal Mist (520E-1) accounting for standard North American door (21 sq.ft.) and window (15 sq.ft.) deductions.
Code 520E-1 (Coastal Mist) reflects 78% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Coastal Mist (520E-1) registers J'=91.7, a'=-9.17, and b'=-5.17 with HSL (189°, 41%, 87%) and Helmholtz-Kohlrausch perceived value 91.3 L*_HK. Because 520E-1 carries a*=-6.45 red-green and b*=-4.41 yellow-blue balance at chroma C*=7.81, Coastal Mist projects a cool cool coastal blue-grey character across drywall and millwork.
Thermal lighting shifts Behr 520E-1 predictably. Under 5000K noon daylight, Coastal Mist (520E-1) holds its native #DBE7E2 swatch; at 4000K cool office LED, 520E-1 adapts to #E2E5D9; at 3500K halogen, Coastal Mist transitions to #E8E4D2; at 3000K residential LED, 520E-1 warms to #EFE2CD; and under 2700K evening bulbs, Coastal Mist (520E-1) settles at #F4E1C9.
When cross-matching Behr Coastal Mist (520E-1, #D2E8EC), Benjamin Moore Icy Blue (2057-70, #D5EBEE, LRV 79.54%) scores ΔE2000=0.8 and CAM16=1.03, followed by Blue Angel (2058-70, ΔE=1.01). In Sherwin-Williams, Bravo Blue (SW 6784, #D3E7E9, LRV 76.72%) achieves ΔE2000=1 ahead of Aviary Blue (SW 6778, ΔE=2.53). Coordinate 520E-1 with Ultra Pure White® (PPU18-6) ceilings, Silver Chalice (640E-1) trim, Silver Strand (560E-3) hallways, and Half Sea Fog (N470-3) accents.
Spectrophotometric answers for homeowners, interior designers, and painting contractors specifying Behr Coastal Mist.
Behr Coastal Mist (520E-1) records an official Light Reflectance Value of 78% (#D2E8EC) and a Helmholtz-Kohlrausch perceived lightness of 91.3 L*_HK.
At 78% reflectance, Coastal Mist (520E-1) sits in the high-reflectance architectural tier, bouncing daylight across Behr walls while maintaining HSL (189°, 41%, 87%).
CIELAB telemetry (L*=90.54, a*=-6.45, b*=-4.41) classifies Behr Coastal Mist (520E-1) as a Cool Cool Coastal Blue-Grey with C*=7.81 chroma and h°=214.4° hue.
Pair Coastal Mist (520E-1) with South & West Sun Exposure for 520E-1 (78% LRV) and Honey Red Oak & Amber Maple balanced by Coastal Mist (520E-1). Under 2700K evening bulbs, 520E-1 shifts from #D2E8EC toward #F4E1C9.
Closest verified equivalents to Behr Coastal Mist (520E-1, #D2E8EC) are Benjamin Moore Icy Blue (2057-70, #D5EBEE) at ΔE2000=0.8 and Sherwin-Williams Bravo Blue (SW 6784, #D3E7E9) at ΔE2000=1.
Both 2057-70 and SW 6784 matches are verified against Coastal Mist (520E-1) in CIE ΔE2000 and CAM16-UCS space.
Alongside Behr Coastal Mist (520E-1, LRV 78%), our Ou-Luo harmony engine specifies Behr Silver Chalice (640E-1, #ECEBE9, LRV 83%) in Semi-Gloss or Satin.
Pairing Silver Chalice (640E-1) with Coastal Mist (520E-1) frames door casings and baseboards cleanly.