Make posters hidden from color blind eyes. Based on the same principle as the Ishihara test — visible to most, invisible to some.
Red-green color blindness is the most common type, affecting 1 in 12 men. People with it struggle to distinguish warm oranges from muted greens. These posters exploit that gap.
Warm oranges for the text. Muted greens for the background. To color blind eyes, both sets look the same.
Letters are formed by clusters of orange circles. The randomness breaks up outlines so edges aren't visible.
Most people read it instantly. Someone with red-green color blindness just sees a field of dots.
Men have some form of color vision deficiency. Red-green color blindness is by far the most common type.
People worldwide are color blind. Most have never seen one of these posters for what it is.
A name, a word, a message. Type it in and download a hi-res poster.
Type your text, choose a size, and download a high-resolution poster.
Short words work best. Up to 14 characters.