Behr Dayflower (MQ3-54) records 58% LRV and 81.3 L*_HK lightness (#B8CCCD, RGB 184/204/205). Its CIELAB coordinates (L*=80.62, a*=-6.53, b*=-2.8, C*=7.1, h°=203.2°) place MQ3-54 in the Cool Coastal Blue-Grey class. Top cross-brand matches for Dayflower (MQ3-54) are Benjamin Moore Yarmouth Blue (HC-150, ΔE=1.01) and Sherwin-Williams Sleepy Blue (SW 6225, ΔE=2.33).
Behr Dayflower (MQ3-54, #B8CCCD) 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) | Dayflower (MQ3-54) | #B8CCCD | 58% | Cool Coastal Blue-Grey | 0.00 (Ref) |
| Benjamin Moore #1 | Yarmouth Blue (HC-150) | #B5C8C9 | 55.23% | Cool Coastal Blue-Grey | ΔE 1.01 (97.9%) |
| Benjamin Moore #2 | Gossamer Blue (2123-40) | #B3C8C8 | 54.94% | Organic Sage Green-Grey | ΔE 1.27 (97.3%) |
| Sherwin-Williams #1 | Sleepy Blue (SW 6225) | #BCCBCE | 57.74% | Cool Coastal Blue-Grey | ΔE 2.33 (95.1%) |
| Sherwin-Williams #2 | Watery (SW 6478) | #B4CCC9 | 56.98% | Organic Sage Green-Grey | ΔE 2.60 (94.5%) |
Cross-room ΔE=1.01 equivalent for MQ3-54: Yarmouth Blue (HC-150) delivers -2.8 LRV points deeper than Dayflower (MQ3-54) with matched C*=6.78 saturation.
Cross-room ΔE=1.27 equivalent for MQ3-54: Gossamer Blue (2123-40) delivers -3.1 LRV points deeper than Dayflower (MQ3-54) with matched C*=7.48 saturation.
Cross-room ΔE=1.61 equivalent for MQ3-54: Dusky Blue (1640) delivers +3 LRV points lighter than Dayflower (MQ3-54) with matched C*=7.18 saturation.
Visual ΔE=2.33 alternative to MQ3-54: Sleepy Blue (SW 6225) delivers identical 57.74% reflectance to MQ3-54 with -1.56 softer C*=5.54 chroma.
Visual ΔE=2.6 alternative to MQ3-54: Watery (SW 6478) delivers -1 LRV points deeper than Dayflower (MQ3-54) with +1.63 higher C*=8.73 chroma.
Visual ΔE=2.71 alternative to MQ3-54: Tradewind (SW 6218) delivers +2.5 LRV points lighter than Dayflower (MQ3-54) with -2.44 softer C*=4.66 chroma.
Coordinated ceiling, trim, wall, sightline, and accent pairings for Dayflower (#B8CCCD, LRV 58%).
Dayflower (MQ3-54, h°=203.2°) tempers intense afternoon sunlight on Behr walls.
Heart Pine & Medium Saddle Stained Oak paired with MQ3-54
2700K–3000K Warm LED for MQ3-54 (4000K renders #C6C9BC)
Need Dayflower (MQ3-54, LRV 58%) brighter or deeper? Adjacent Behr fan-deck steps around #B8CCCD:
Calculate exact gallon volume for Behr Dayflower (MQ3-54) accounting for standard North American door (21 sq.ft.) and window (15 sq.ft.) deductions.
Code MQ3-54 (Dayflower) reflects 58% of incident D65 light. Measured in CAM16-UCS uniform space, Behr Dayflower (MQ3-54) registers J'=82.8, a'=-9.08, and b'=-3.54 with HSL (183°, 17%, 76%) and Helmholtz-Kohlrausch perceived value 81.3 L*_HK. Because MQ3-54 carries a*=-6.53 red-green and b*=-2.8 yellow-blue balance at chroma C*=7.1, Dayflower projects a cool cool coastal blue-grey character across drywall and millwork.
Thermal lighting shifts Behr MQ3-54 predictably. Under 5000K noon daylight, Dayflower (MQ3-54) holds its native #C0CBC5 swatch; at 4000K cool office LED, MQ3-54 adapts to #C6C9BC; at 3500K halogen, Dayflower transitions to #CCC8B6; at 3000K residential LED, MQ3-54 warms to #D2C7B2; and under 2700K evening bulbs, Dayflower (MQ3-54) settles at #D6C5AE.
When cross-matching Behr Dayflower (MQ3-54, #B8CCCD), Benjamin Moore Yarmouth Blue (HC-150, #B5C8C9, LRV 55.23%) scores ΔE2000=1.01 and CAM16=1.31, followed by Gossamer Blue (2123-40, ΔE=1.27). In Sherwin-Williams, Sleepy Blue (SW 6225, #BCCBCE, LRV 57.74%) achieves ΔE2000=2.33 ahead of Watery (SW 6478, ΔE=2.6). Coordinate MQ3-54 with Bakery Box (BL-W9) ceilings, Bridal Veil (W-D-600) trim, Ice Mist (HDC-MD-23) hallways, and Ethereal White (BL-W4) accents.
Spectrophotometric answers for homeowners, interior designers, and painting contractors specifying Behr Dayflower.
Behr Dayflower (MQ3-54) records an official Light Reflectance Value of 58% (#B8CCCD) and a Helmholtz-Kohlrausch perceived lightness of 81.3 L*_HK.
At 58% reflectance, Dayflower (MQ3-54) is a mid-tone Behr shade with enough pigment depth (L*=80.62) to hold its #B8CCCD color in bright sun.
CIELAB telemetry (L*=80.62, a*=-6.53, b*=-2.8) classifies Behr Dayflower (MQ3-54) as a Cool Cool Coastal Blue-Grey with C*=7.1 chroma and h°=203.2° hue.
Pair Dayflower (MQ3-54) with South & West Sun Exposure for MQ3-54 (58% LRV) and Heart Pine & Medium Saddle Stained Oak paired with MQ3-54. Under 2700K evening bulbs, MQ3-54 shifts from #B8CCCD toward #D6C5AE.
Closest verified equivalents to Behr Dayflower (MQ3-54, #B8CCCD) are Benjamin Moore Yarmouth Blue (HC-150, #B5C8C9) at ΔE2000=1.01 and Sherwin-Williams Sleepy Blue (SW 6225, #BCCBCE) at ΔE2000=2.33.
Both HC-150 and SW 6225 matches are verified against Dayflower (MQ3-54) in CIE ΔE2000 and CAM16-UCS space.
Alongside Behr Dayflower (MQ3-54, LRV 58%), our Ou-Luo harmony engine specifies Behr Bridal Veil (W-D-600, #F3F1EE, LRV 88%) in Semi-Gloss or Satin.
Pairing Bridal Veil (W-D-600) with Dayflower (MQ3-54) frames door casings and baseboards cleanly.