Neon signs, traditionally, do not operate using RGB (Red, Green, Blue) technology in the same way that modern LED or digital displays do. Neon signs rely on long, thin tubes filled with neon or other rare gases that glow when an electrical current is passed through them. The color of the glow is determined by the type of gas used in the tube:

• Neon gas produces a distinctive red-orange light.
• Argon, mixed with a small amount of mercury, can produce a blue light.
• Other gases and gas mixtures can produce a variety of colors, but the key is that the color is fixed by the gas composition, not by mixing RGB colors.

RGB technology, on the other hand, is used in displays like LED screens and digital signs, where individual pixels can be controlled to emit varying intensities of red, green, and blue light. By combining these colors in different ways, a wide range of colors can be produced, including those that are not naturally achievable with neon gas.

So, while neon signs can produce a range of colors, they do not do so by utilizing RGB technology. Instead, they rely on the properties of different gases to create their distinctive colors.