RGBAW

Overview

RGBAW (also written RGBWA) does not refer to a single device, but to a color mixing method for LED fixtures. The abbreviation stands for the five diode colors Red, Green, Blue, Amber, and White. These five emitters are either seated as separate individual diodes in the housing or bundled in a multi-chip package (often marketed as "5-in-1" LEDs). Through additive color mixing, the output color and – depending on the control – also the color temperature of the white light can be generated from these.

RGBAW is the extension of the simpler schemes RGB, RGBW (with additional white), and RGBA (with additional amber). It combines both additional colors in one system. A further expansion stage is RGBAW-UV (six colors, with an additional UV diode).

Why Amber and White?

Pure RGB systems have weaknesses in warm tones and clean white: There are gaps in the spectrum between the narrow-band primary colors, especially in the cyan, yellow, and orange ranges. This makes a well-rendering, neutral white and convincing pastel or skin tones difficult.

• White Diode: inherently provides a broader-spectrum, better-rendering white light than RGB mixing.
• Amber Diode: fills the spectral "gap" in the warm range (gold, yellow, orange tones) and enables warmer, richer color impressions as well as a more pleasant warm white.

By combining both additional colors, RGBAW covers a larger color space (gamut) than RGB or RGBW alone and facilitates white balancing over a wide range from warm to cool.

Use on Set

RGBAW mixing is primarily found in color-controllable LED devices such as LED pars, wash lights, tubes/pixel bars, and panels, which are controlled via DMX/RDM. In film and TV, the method is attractive because effect colors and definable white light are combined in one device.

Practical Notes:

• Amber diodes typically have lower light output than the other colors; with very saturated amber/orange, the brightness may be lower.
• The actual color and white quality depends heavily on the mixing algorithm and the quality of the respective device – the scheme alone does not guarantee a good result.
• High-quality RGBW fixtures with good color engines can produce similar warm tones in practice, which is why the additional amber diode is not absolutely necessary in every workflow.