Do different synaesthetes agree on what colour letters should be?
No and yes. Two synaesthetes together will often argue over the colour of letters! But when we look at a very large sample of synaesthetes, significant preferences emerge. For instance, ‘A’ is often red, ‘B’ is often blue, ‘S’ is often yellow and so on. Shared preferences can also be found in other types of synaesthesia (e.g., people with coloured music tend to agree that high notes are lighter in colour than low notes).
