# Rookwood Blue Green SW 2811

- Brand: Sherwin-Williams
- Code: SW 2811
- Hex: #728579 (manufacturer-published)
- LRV: 21.73 (computed)
- Undertone: green-leaning (cool, subtle)
- Family: grays
- Chroma: 0.0285 · Hue angle: 157.7°

Makes a room feel smaller and calmer. Needs layered artificial light to stay legible at night.

Exterior: Significant heat gain. Many vinyl siding warranties cap LRV — verify before specifying.

Screen colour is approximate. Obtain a physical sample before specifying.
Methodology: https://paintingmania.shop/color-methodology/