And the new color enabled by Oz is named “olo,” a reference to its theoretical color space coordinates, which are [0,1,0]. They stimulated the perception of olo against different color backgrounds, with moving overlays, and also directly up against some shades on the edge of (but still within) the normal human color space. To view the color, subjects had to keep very still, with their eyes positioned exactly in place– facilitated in part by a bite-bar. We’re far away from portable glasses or screens that can track eye movements well enough to deliver a full Oz color experience. And the need for a detailed retina map makes adding study subjects a resource-intensive endeavor (that’s why the number of participants was so small–another limitation).