Comparison

Light Blue vs Niagara Falls

Benjamin Moore 2066-70 and PPG 1240-2, ΔE 2.38 apart

Benjamin Moore Light Blue 2066-70 on a wall, hex #CAE8F3
Light Blue Benjamin Moore 2066-70
PPG Niagara Falls 1240-2 on a wall, hex #CBE3EE
Niagara Falls PPG 1240-2
Zeytin’s verdict · ΔE 2.38Close cousins. Paint a sample of each before you choose.

Benjamin Moore Light Blue (2066-70) and PPG Niagara Falls (1240-2) measure a delta-E of 2.38 apart. Light Blue is 1.6 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 11.5 and 9.9. The undertones part company: Light Blue reads as a teal undertone at hue angle 228.9 degrees, Niagara Falls as a blue undertone at 234.7. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Niagara Falls depth in Benjamin Moore's line, start from its LRV of 74.0 rather than matching by name.

Is Benjamin Moore Light Blue the same color as PPG Niagara Falls?

Not quite, but close - Benjamin Moore Light Blue and PPG Niagara Falls are delta-E 2.38 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Light Blue and PPG Niagara Falls?

The measured color distance between Benjamin Moore Light Blue and PPG Niagara Falls is delta-E 2.38.

Which is lighter, Benjamin Moore Light Blue or PPG Niagara Falls?

Benjamin Moore Light Blue is lighter than PPG Niagara Falls by 1.6 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.38 Light Blue and Niagara Falls
LIGHTESTLight Blue LRV 75.6
DARKESTNiagara Falls LRV 74.0
SPREAD1.6LRV points

Side by side

measured values
Light Blue Niagara Falls
Brand Benjamin Moore PPG
Code 2066-70 1240-2
Hex #CAE8F3 #CBE3EE
Light reflectance 75.6 74.0
Undertone teal undertone blue undertone
Chroma 11.5 9.9
Hue angle 228.9° 234.7°
Color family teal teal

Each on its own

full detail