Toni and I bounced ideas back and forth to find an idea that would represent the theme of the book and be accessible to all forms of colour vision. In the book's title scene Bartholomew, the hero, enthusiastically paints a green fire engine. We wanted to use this scene, and Toni asked me to make the fire engine the actual colour that Bartholomew would see. Toni went shopping with her son Rob, who inspired the book, to select a tone of green paint that he saw as similar to fire engine red. Then she painted the fire engine. It looked so great I used her painting in the picture. To add a bit of fun and confusion, I put in a matching paint jar with only the letters RE left unobscured - red or green?
I checked the picture for tonal values and also ran it through a simulator to see how it would look to people with protanopia or deuteranopia (forms of red-green colourblindness). I had to fiddle with the colours in Photoshop several times to create something that read clearly in all versions.
There is no cat mentioned in the book but I thought it would be nice to add one - NOT a ginger cat but a bluey white one that would
|How the picture looks on black and white TV|
|How the picture looks to someone with protanopia|
|How the banner looks to someone with deuteranopia|