Comparison

Frosty Day vs River Mist

Dunn-Edwards DE5826 and Valspar 5003-9A, ΔE 2.33 apart

Dunn-Edwards Frosty Day DE5826 on a wall, hex #CCEBF5
Frosty Day Dunn-Edwards DE5826
Valspar River Mist 5003-9A on a wall, hex #C6E8EF
River Mist Valspar 5003-9A
Zeytin’s verdict · ΔE 2.33Close cousins. Paint a sample of each before you choose.

Dunn-Edwards Frosty Day (DE5826) and Valspar River Mist (5003-9A) measure a delta-E of 2.33 apart. Frosty Day is 3.8 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 11.5 and 12. Close, but a large sample of each will show the gap, particularly against white trim. If you need the River Mist depth in Dunn-Edwards's line, start from its LRV of 75.0 rather than matching by name.

Is Dunn-Edwards Frosty Day the same color as Valspar River Mist?

Not quite, but close - Dunn-Edwards Frosty Day and Valspar River Mist are delta-E 2.33 apart, close enough that most rooms would not show the difference.

What is the delta-E between Dunn-Edwards Frosty Day and Valspar River Mist?

The measured color distance between Dunn-Edwards Frosty Day and Valspar River Mist is delta-E 2.33.

Which is lighter, Dunn-Edwards Frosty Day or Valspar River Mist?

Dunn-Edwards Frosty Day is lighter than Valspar River Mist by 3.8 points of light reflectance (LRV).

CLOSEST PAIRΔE 2.33 Frosty Day and River Mist
LIGHTESTFrosty Day LRV 78.8
DARKESTRiver Mist LRV 75.0
SPREAD3.8LRV points

Side by side

measured values
Frosty Day River Mist
Brand Dunn-Edwards Valspar
Code DE5826 5003-9A
Hex #CCEBF5 #C6E8EF
Light reflectance 78.8 75.0
Undertone teal undertone teal undertone
Chroma 11.5 12.0
Hue angle 225.7° 216.5°
Color family teal teal

Each on its own

full detail