Historical
ANSI E1.54-2015
PLASA Standard for Color Communication in Entertainment Lighting
E1.54 specifies a standardized color space and defines the locations of the RGB primaries and the White Point for the purpose of facilitating the communications between lighting controllers and color-changing luminaires. It offers a standardized way of specifying color. The method is generic and is neither manufacturer specific nor color technology-specific.
Entertainment Services and Technology Association [esta]