Portsmouth Blue is a medium, muted cool gray — tranquil in tone, with cleanly balanced undertones. With an LRV of 43, it strikes a balance that suits both traditional and contemporary spaces, from dining rooms to dens. The closest cross-brand match is Sherwin-Williams's Riverway, a near-identical match. Hirshfield's's Portsmouth Blue is another strong alternative.
Suggested Color Palettes
Color harmonies based on color theory — each swatch links to the closest matching paint.
Opposite on the color wheel — creates vibrant contrast
Closest Matches from Other Brands
Closest digital match based on color values. Pigments and finishes differ between brands — always verify with physical samples.