Comparison

Frosty Fog vs Sweet Flower

Dunn-Edwards DE5917 and Vista Paint 1258, ΔE 1.47 apart

Dunn-Edwards Frosty Fog DE5917 on a wall, hex #DEE1E9
Frosty Fog Dunn-Edwards DE5917
Vista Paint Sweet Flower 1258 on a wall, hex #E3E3EA
Sweet Flower Vista Paint 1258
Zeytin’s verdict · ΔE 1.47Twins, almost. Only daylight on a big wall tells them apart.

Dunn-Edwards Frosty Fog (DE5917) and Vista Paint Sweet Flower (1258) measure a delta-E of 1.47 apart. Sweet Flower is 1.7 LRV points lighter, which is the difference you notice first. Both carry a similar amount of color, at chroma 4.3 and 3.6. The undertones part company: Frosty Fog reads as a cool blue-gray at hue angle 276.3 degrees, Sweet Flower as a cool violet-gray at 290.5. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Frosty Fog depth in Vista Paint's line, start from its LRV of 75.3 rather than matching by name.

Is Dunn-Edwards Frosty Fog the same color as Vista Paint Sweet Flower?

Not quite, but close - Dunn-Edwards Frosty Fog and Vista Paint Sweet Flower are delta-E 1.47 apart, close enough that most rooms would not show the difference.

What is the delta-E between Dunn-Edwards Frosty Fog and Vista Paint Sweet Flower?

The measured color distance between Dunn-Edwards Frosty Fog and Vista Paint Sweet Flower is delta-E 1.47.

Which is lighter, Dunn-Edwards Frosty Fog or Vista Paint Sweet Flower?

Vista Paint Sweet Flower is lighter than Dunn-Edwards Frosty Fog by 1.7 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.47 Frosty Fog and Sweet Flower
LIGHTESTSweet Flower LRV 77.0
DARKESTFrosty Fog LRV 75.3
SPREAD1.7LRV points

Side by side

measured values
Frosty Fog Sweet Flower
Brand Dunn-Edwards Vista Paint
Code DE5917 1258
Hex #DEE1E9 #E3E3EA
Light reflectance 75.3 77.0
Undertone cool blue-gray cool violet-gray
Chroma 4.3 3.6
Hue angle 276.3° 290.5°
Color family gray gray

Each on its own

full detail