Comparison

Chalk Gray vs Grey Mare

Kilz RJ230 and Vista Paint 8291, ΔE 0.73 apart

Kilz Chalk Gray RJ230 on a wall, hex #CFD1CD
Chalk Gray Kilz RJ230
Vista Paint Grey Mare 8291 on a wall, hex #D0D3CF
Grey Mare Vista Paint 8291
Zeytin’s verdict · ΔE 0.73Same color. Buy the cheaper one.

Kilz Chalk Gray (RJ230) and Vista Paint Grey Mare (8291) measure a delta-E of 0.73 apart. They sit within 0 LRV points of each other, so neither will look brighter than the other on the same wall. Both carry a similar amount of color, at chroma 2.2 and 2.4. Side by side on a wall these are effectively the same color. Choose on price and availability rather than appearance. If you need the Chalk Gray depth in Vista Paint's line, start from its LRV of 63.0 rather than matching by name.

Is Kilz Chalk Gray the same color as Vista Paint Grey Mare?

Yes, by measurement - Kilz Chalk Gray and Vista Paint Grey Mare are only delta-E 0.73 apart, which is below what the human eye can reliably tell apart.

What is the delta-E between Kilz Chalk Gray and Vista Paint Grey Mare?

The measured color distance between Kilz Chalk Gray and Vista Paint Grey Mare is delta-E 0.73.

CLOSEST PAIRΔE 0.73 Chalk Gray and Grey Mare
LIGHTESTChalk Gray LRV 63.0
DARKESTChalk Gray LRV 63.0
SPREAD0LRV points

Side by side

measured values
Chalk Gray Grey Mare
Brand Kilz Vista Paint
Code RJ230 8291
Hex #CFD1CD #D0D3CF
Light reflectance 63.0 63.0
Undertone true neutral true neutral
Chroma 2.2 2.4
Hue angle 129.0° 137.3°
Color family gray gray

Each on its own

full detail