Start with the documented color character
Roycroft Bronze Green is a deep green with a low reflectance value. Temperature is a useful description, but neighboring materials can change the impression. Roycroft Bronze Green has enough depth to act as a dark architectural color, irrespective of the historic association in its name.
Red brick and copper-colored metal are specific warm neighbors; a heritage name cannot guarantee compatibility with their exact finishes.
Use Cypress Green as a control
Temperature is easier to assess when Roycroft Bronze Green has enough light to show its hue. Check a lit panel beside the actual metal or wood, then inspect the shaded section. A very dark surface may function mainly as an outline even when its published color description has a distinct temperature.
Roycroft Bronze Green has an LRV of 9; Benjamin Moore Cypress Green 509 is 35.09. The difference is 26.09 points, with Cypress Green returning more light under the reference measurement. Cypress Green is a warm olive softened with gray. This supplies a named color control; the LRV gap alone does not identify the warmer, greener or pinker paint.
The condition for keeping Roycroft Bronze Green
Test the actual brick and metal together before treating the historic name as a guaranteed period match. The undertones and neighboring colors covers that related choice.
Judge the temperature description against the full red brick and copper-colored metal arrangement. A warm or cool label is a useful starting category; it cannot guarantee that Roycroft Bronze Green agrees with every material assigned the same label. The wood-floor pairing guide covers that related choice. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Sherwin-Williams Roycroft Bronze Green SW-2846. The recorded LRV is 9. Named comparison values come from the respective manufacturers; material schemes are editorial suggestions.
This guide reviews published color information and proposes practical sample checks. It does not claim first-hand paint testing or customer-review scores. Sherwin-Williams does not sponsor or endorse this site. Product names and trademarks belong to their respective owners. Confirm the color in a physical sample and select the coating for the actual surface and finish.