Pick a whiteboard colour that looks close to a brand palette on screen, and it can read as an obvious mismatch once it is a metre wide on a real wall under real lighting. Scale and lighting change how a colour reads, which is why matching a design whiteboard to a brand palette needs more than a swatch comparison. Check it properly and the panel reads as part of the brand, not an approximation of it. This matters most for organisations planning to install more than one board across different rooms or offices, where an inconsistent match between locations is more noticeable than a single board that is slightly off on its own.
