RGBACL stands for red, green, blue, amber, cyan and lime. The term can identify a six-colour LED engine, such as ARRI Orbiter’s, or appear in a manufacturer’s control-mode documentation. Read which meaning applies to the fixture.
Why additional colours are used
Amber, cyan and lime provide more components for the colour engine to combine than RGB alone. The useful result depends on the emitter spectra, calibration and control algorithms. The six-letter label by itself does not establish a particular colour-rendering score or guarantee a camera match.
Practical example
For routine white-light work on an Orbiter, select the calibrated CCT controls and check the result. Direct RGBACL control is useful when deliberately adjusting individual colour components, but setting all six to the same percentage is not a universal recipe for neutral white.
Physical emitters and channel maps
A DMX profile name describes the control channels exposed to the controller. It should not be used as proof of the underlying hardware without the manufacturer’s explanation. Keep the fixture’s light-engine specification separate from its selected DMX personality when documenting a setup.
Equipment examples
The ARRI Orbiter uses ARRI’s six-colour RGBACL engine. Its individual-colour controls are distinct from its calibrated white-light modes.
Related terms
Colour Mixing · RGBWW · DMX Personality · SSI (Spectral Similarity Index)
References
ARRI: Orbiter light engine · Aputure: individual-emitter profiles