Start with the documented color character
Cinnamon Slate blends plum and brown at a relatively deep value. A physical comparison is needed to decide how that character works with your own finishes. Cinnamon Slate's plum-brown mixture makes it a color choice with depth, rather than a generic neutral taupe.
Why the walnut furniture and neutral wool relationship matters
Walnut can repeat the brown side while neutral wool leaves space for plum, avoiding a scheme in which every material adds mauve.
Cinnamon Slate has an LRV of 19.71; Benjamin Moore Velvet Plum CSP-420 is 12.45. The difference is 7.26 points, with Cinnamon Slate returning more light under the reference measurement. Velvet Plum is a deep smoky purple. This supplies a named color control; the LRV gap alone does not identify the warmer, greener or pinker paint.
Use Velvet Plum as a control
Give Cinnamon Slate enough illuminated area to reveal its color, then move the same board into the normal shadow. Compare it briefly with Velvet Plum. Decide whether the hue is important everywhere or whether a near-black impression is acceptable in the darker parts of the planned surface.
Separate a persistent cast from a comparison effect
Keep one large fabric deliberately neutral; let the plum-brown be the color statement. The warm-versus-cool comparison covers that related choice.
Keep, compare or change direction
If the unwanted cast remains beside a permanent finish under normal light, that is a practical reason to replace Cinnamon Slate. If it appears only beside an unused sample, remove the comparison and assess the intended palette alone. Before ordering samples, compare room-planning features in the paint color visualizer roundup.
Sources & notes
Color specifications: Benjamin Moore Cinnamon Slate 2113-40. The recorded LRV is 19.71. 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. Benjamin Moore 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.