Benjamin Moore Constellation (AF-540) records 73.44% LRV and 89.1 L*_HK lightness (#D5E1E3, RGB 213/225/227). Its CIELAB coordinates (L*=88.71, a*=-3.63, b*=-2.36, C*=4.33, h°=213°) place AF-540 in the Cool Coastal Blue-Grey class. Top cross-brand matches for Constellation (AF-540) are Behr Era (MQ3-56, ΔE=0.44) and Sherwin-Williams Iceberg (SW 6798, ΔE=0.98).
Benjamin Moore Constellation (AF-540, #D5E1E3) 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 (Benjamin Moore) | Constellation (AF-540) | #D5E1E3 | 73.44% | Cool Coastal Blue-Grey | 0.00 (Ref) |
| Behr #1 | Era (MQ3-56) | #D7E3E5 | 75% | Cool Coastal Blue-Grey | ΔE 0.44 (99.1%) |
| Behr #2 | Waterfall (HDC-CT-16B) | #CFDFE2 | 72% | Cool Coastal Blue-Grey | ΔE 1.60 (96.6%) |
| Sherwin-Williams #1 | Iceberg (SW 6798) | #D6E4E7 | 75.42% | Cool Coastal Blue-Grey | ΔE 0.98 (97.9%) |
| Sherwin-Williams #2 | Sky High (SW 6504) | #DCE7E8 | 78.1% | Cool Coastal Blue-Grey | ΔE 1.47 (96.9%) |
Sub-threshold ΔE=0.44 match for AF-540: Era (MQ3-56) delivers +1.6 LRV points lighter than Constellation (AF-540) with matched C*=4.32 saturation.
Cross-room ΔE=1.6 equivalent for AF-540: Waterfall (HDC-CT-16B) delivers -1.4 LRV points deeper than Constellation (AF-540) with +1.45 higher C*=5.78 chroma.
Cross-room ΔE=1.63 equivalent for AF-540: Blue Bird Day (BL-W03) delivers +4.6 LRV points lighter than Constellation (AF-540) with -0.79 softer C*=3.54 chroma.
Sub-threshold ΔE=0.98 match for AF-540: Iceberg (SW 6798) delivers +2 LRV points lighter than Constellation (AF-540) with +0.78 higher C*=5.11 chroma.
Cross-room ΔE=1.47 equivalent for AF-540: Sky High (SW 6504) delivers +4.7 LRV points lighter than Constellation (AF-540) with matched C*=3.89 saturation.
Cross-room ΔE=1.95 equivalent for AF-540: Mountain Air (SW 6224) delivers identical 73.19% reflectance to AF-540 with -1.43 softer C*=2.9 chroma.
Coordinated ceiling, trim, wall, sightline, and accent pairings for Constellation (#D5E1E3, LRV 73.44%).
Constellation (AF-540, h°=213°) tempers intense afternoon sunlight on Benjamin Moore walls.
Golden Teak, Pecan & Terracotta Pavers grounded by Constellation
2700K–3000K Warm LED for AF-540 (4000K renders #E4DED0)
Need Constellation (AF-540, LRV 73.44%) brighter or deeper? Adjacent Benjamin Moore fan-deck steps around #D5E1E3:
Calculate exact gallon volume for Benjamin Moore Constellation (AF-540) accounting for standard North American door (21 sq.ft.) and window (15 sq.ft.) deductions.
Code AF-540 (Constellation) reflects 73.44% of incident D65 light. Measured in CAM16-UCS uniform space, Benjamin Moore Constellation (AF-540) registers J'=90.2, a'=-6.09, and b'=-3.30 with HSL (189°, 20%, 86%) and Helmholtz-Kohlrausch perceived value 89.1 L*_HK. Because AF-540 carries a*=-3.63 red-green and b*=-2.36 yellow-blue balance at chroma C*=4.33, Constellation projects a cool cool coastal blue-grey character across drywall and millwork.
Thermal lighting shifts Benjamin Moore AF-540 predictably. Under 5000K noon daylight, Constellation (AF-540) holds its native #DDE0DA swatch; at 4000K cool office LED, AF-540 adapts to #E4DED0; at 3500K halogen, Constellation transitions to #EADDCA; at 3000K residential LED, AF-540 warms to #F1DBC5; and under 2700K evening bulbs, Constellation (AF-540) settles at #F6DAC1.
When cross-matching Benjamin Moore Constellation (AF-540, #D5E1E3), Behr Era (MQ3-56, #D7E3E5, LRV 75%) scores ΔE2000=0.44 and CAM16=0.62, followed by Waterfall (HDC-CT-16B, ΔE=1.6). In Sherwin-Williams, Iceberg (SW 6798, #D6E4E7, LRV 75.42%) achieves ΔE2000=0.98 ahead of Sky High (SW 6504, ΔE=1.47). Coordinate AF-540 with Super White (I-02) ceilings, Misty Gray (2124-60) trim, Soft Chinchilla (2135-50) hallways, and Subway Tile&Reg; (CSP-585) accents.
Spectrophotometric answers for homeowners, interior designers, and painting contractors specifying Benjamin Moore Constellation.
Benjamin Moore Constellation (AF-540) records an official Light Reflectance Value of 73.44% (#D5E1E3) and a Helmholtz-Kohlrausch perceived lightness of 89.1 L*_HK.
At 73.44% reflectance, Constellation (AF-540) sits in the high-reflectance architectural tier, bouncing daylight across Benjamin Moore walls while maintaining HSL (189°, 20%, 86%).
CIELAB telemetry (L*=88.71, a*=-3.63, b*=-2.36) classifies Benjamin Moore Constellation (AF-540) as a Cool Cool Coastal Blue-Grey with C*=4.33 chroma and h°=213° hue.
Pair Constellation (AF-540) with South & West Sun Exposure for AF-540 (73.44% LRV) and Golden Teak, Pecan & Terracotta Pavers grounded by Constellation. Under 2700K evening bulbs, AF-540 shifts from #D5E1E3 toward #F6DAC1.
Closest verified equivalents to Benjamin Moore Constellation (AF-540, #D5E1E3) are Behr Era (MQ3-56, #D7E3E5) at ΔE2000=0.44 and Sherwin-Williams Iceberg (SW 6798, #D6E4E7) at ΔE2000=0.98.
Both MQ3-56 and SW 6798 matches are verified against Constellation (AF-540) in CIE ΔE2000 and CAM16-UCS space.
Alongside Benjamin Moore Constellation (AF-540, LRV 73.44%), our Ou-Luo harmony engine specifies Benjamin Moore Misty Gray (2124-60, #E8EBEA, LRV 82.5%) in Semi-Gloss or Satin.
Pairing Misty Gray (2124-60) with Constellation (AF-540) frames door casings and baseboards cleanly.