Comparison

Ultra Pure White® vs High Reflective White

Behr PPU18-6 and Sherwin-Williams SW 7757 — the same color, ΔE 0.35

Behr Ultra Pure White® PPU18-6 on a wall, hex #F8F8F2
Ultra Pure White® Behr PPU18-6
Sherwin-Williams High Reflective White SW 7757 on a wall, hex #F7F7F1
High Reflective White Sherwin-Williams SW 7757
Zeytin’s verdict · ΔE 0.35Same color. Buy the cheaper one.

Behr Ultra Pure White® (PPU18-6) and Sherwin-Williams High Reflective White (SW 7757) are the same to within a rounding error color. Both measure LRV 404.0 at chroma 3.0, with a delta-E of 0.35 between them - far below what an eye can see even on a large wall in daylight. Nothing here should decide the purchase: buy on price, on which store is nearer, or on which line has the finish you want. Neither is the better version of the other.

Is Behr Ultra Pure White® the same color as Sherwin-Williams High Reflective White?

Yes, by measurement - Behr Ultra Pure White® and Sherwin-Williams High Reflective White are only delta-E 0.35 apart, which is below what the human eye can reliably tell apart.

What is the delta-E between Behr Ultra Pure White® and Sherwin-Williams High Reflective White?

The measured color distance between Behr Ultra Pure White® and Sherwin-Williams High Reflective White is delta-E 0.35.

Which is lighter, Behr Ultra Pure White® or Sherwin-Williams High Reflective White?

Behr Ultra Pure White® is lighter than Sherwin-Williams High Reflective White by 311.3 points of light reflectance (LRV).

CLOSEST PAIRΔE 0.35 Ultra Pure White® and High Reflective White
LIGHTESTUltra Pure White® LRV 404.0
DARKESTHigh Reflective White LRV 92.7
SPREAD311.3LRV points

Side by side

measured values
Ultra Pure White® High Reflective White
Brand Behr Sherwin-Williams
Code PPU18-6 SW 7757
Hex #F8F8F2 #F7F7F1
Light reflectance 404.0 92.7
Undertone yellow cast yellow cast
Chroma 3.0 3.1
Hue angle 109.9° 109.9°
Color family white white

Each on its own

full detail