Comparison

White Hyacinth vs Oat Straw

Sherwin-Williams SW 0046 and Vista Paint 8540 — the same color, ΔE 0.35

Sherwin-Williams White Hyacinth SW 0046 on a wall, hex #F3E5D1
White Hyacinth Sherwin-Williams SW 0046
Vista Paint Oat Straw 8540 on a wall, hex #F4E6D2
Oat Straw Vista Paint 8540
Zeytin’s verdict · ΔE 0.35Same color. Buy the cheaper one.

Sherwin-Williams White Hyacinth (SW 0046) and Vista Paint Oat Straw (8540) are the same to within a rounding error color. Both measure LRV 79.7 at chroma 11.5, 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 Sherwin-Williams White Hyacinth the same color as Vista Paint Oat Straw?

Yes, by measurement - Sherwin-Williams White Hyacinth and Vista Paint Oat Straw are only delta-E 0.35 apart, which is below what the human eye can reliably tell apart.

What is the delta-E between Sherwin-Williams White Hyacinth and Vista Paint Oat Straw?

The measured color distance between Sherwin-Williams White Hyacinth and Vista Paint Oat Straw is delta-E 0.35.

Which is lighter, Sherwin-Williams White Hyacinth or Vista Paint Oat Straw?

Sherwin-Williams White Hyacinth is lighter than Vista Paint Oat Straw by 3.7 points of light reflectance (LRV).

CLOSEST PAIRΔE 0.35 White Hyacinth and Oat Straw
LIGHTESTWhite Hyacinth LRV 79.7
DARKESTOat Straw LRV 76.0
SPREAD3.7LRV points

Side by side

measured values
White Hyacinth Oat Straw
Brand Sherwin-Williams Vista Paint
Code SW 0046 8540
Hex #F3E5D1 #F4E6D2
Light reflectance 79.7 76.0
Undertone yellow undertone yellow undertone
Chroma 11.5 11.5
Hue angle 82.5° 82.5°
Color family tan tan

Each on its own

full detail