What does the one-colour test assess?

### Why this is right The proposal says the logo must maintain its characteristics and communicate in a single colour. It also says that key features should not be differentiated by colour alone. ### The concept The **one-colour test** checks whether a logo's important shapes and features remain understandable without a palette of colours. This matters because a logo may be reproduced in settings where colour is unavailable or unsuitable. The test is about communication and recognition, not about counting visual elements or limiting a logo to print. A design that depends entirely on colour to distinguish its parts may lose meaning when reproduced in one colour. ### The other options - **B. Whether the logo contains exactly one visual element**: The test concerns colour-independent communication, not the number of elements. - **C. Whether the logo is used only in print**: The proposal asks for adaptability across different uses, not print-only use. - **D. Whether the logo uses a different colour for every feature**: This is the opposite of the test's purpose, which is to avoid relying on colour differences alone. ### Terms - **One-colour test**: A check of whether a logo remains recognizable and communicative when shown in one colour. ### Remember A logo should not need colour differences to explain its key features.