Portsmouth vs Prelude paint color comparison

Portsmouth vs Prelude

PortsmouthSherwin-WilliamsvsPreludeSherwin-WilliamsΔE 19.0 — Distinct difference

Both are Sherwin-Williams colors. Portsmouth reads as blue-grey, while Prelude reads as grey — two distinct hue families, not close cousins. At LRV 22 vs 9, Portsmouth will read as the brighter of the two — a 12-point gap that matters most in north-facing or low-light rooms. They share a neutral quality — useful to know if you're layering them in the same space. At ΔE 19.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below, 5 simulated room previews show how each color reads at scale — real-room photos will be added as they become available.

Color Details

Portsmouth
Sherwin-Williams · 9644
LRV21.9
BrandSherwin-Williams
Number9644
Undertone—
TemperatureNeutral
BrightnessMedium
Prelude
Sherwin-Williams · 9620
LRV9.4
BrandSherwin-Williams
Number9620
Undertone—
TemperatureNeutral
BrightnessDark

Portsmouth vs Prelude Simulated Comparison

5 simulated room previews — drag the slider on each to see Portsmouth on one side and Prelude on the other.

Bathroom
Bedroom
House
Kitchen Cabinets
Living Room

Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.