Comparison

Patriotic White vs Mellow Blue

Benjamin Moore 2135-70 and Dutch Boy DCP-0468, ΔE 2.99 apart

Benjamin Moore Patriotic White 2135-70 on a wall, hex #E4EDEB
Patriotic White Benjamin Moore 2135-70
Dutch Boy Mellow Blue DCP-0468 on a wall, hex #DDE8E2
Mellow Blue Dutch Boy DCP-0468
Zeytin’s verdict · ΔE 2.99Close cousins. Paint a sample of each before you choose.

Benjamin Moore Patriotic White (2135-70) and Dutch Boy Mellow Blue (DCP-0468) measure a delta-E of 2.99 apart. Patriotic White is 2.4 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 3.3 and 5. Close, but a large sample of each will show the gap, particularly against white trim. If you need the Mellow Blue depth in Benjamin Moore's line, start from its LRV of 78.6 rather than matching by name.

Is Benjamin Moore Patriotic White the same color as Dutch Boy Mellow Blue?

Not quite, but close - Benjamin Moore Patriotic White and Dutch Boy Mellow Blue are delta-E 2.99 apart, close enough that most rooms would not show the difference.

What is the delta-E between Benjamin Moore Patriotic White and Dutch Boy Mellow Blue?

The measured color distance between Benjamin Moore Patriotic White and Dutch Boy Mellow Blue is delta-E 2.99.

Which is lighter, Benjamin Moore Patriotic White or Dutch Boy Mellow Blue?

Benjamin Moore Patriotic White is lighter than Dutch Boy Mellow Blue by 2.4 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.99 Patriotic White and Mellow Blue
LIGHTESTPatriotic White LRV 81.0
DARKESTMellow Blue LRV 78.6
SPREAD2.4LRV points

Side by side

measured values
Patriotic White Mellow Blue
Brand Benjamin Moore Dutch Boy
Code 2135-70 DCP-0468
Hex #E4EDEB #DDE8E2
Light reflectance 81.0 78.6
Undertone green cast green cast
Chroma 3.3 5.0
Hue angle 181.4° 161.0°
Color family gray gray

Each on its own

full detail