Most people who say “RGB” on the internet are talking about the RGB color model : the system of red, green, and blue light used to create all the colors you see on screens (monitors, TVs, phones, LEDs, etc.).

However, your phrase “who is rgb” could mean a few different things, so here are the main possibilities.

1. RGB as a color model (most common meaning)

In tech, gaming, and design forums, “RGB” almost always means the color system, not a person.

  • RGB stands for Red, Green, Blue.
  • It’s an additive color model: screens combine red, green, and blue light at different intensities (0–255 in many systems) to produce millions of colors.
  • When all three are at 0, the pixel looks black; when all three are at maximum, the pixel looks white.

So in many “who is RGB” type posts, the joke answer is basically:

RGB isn’t a person, it’s the color system making your screen glow.

2. “RGB” as a mistaken nickname for Ruth Bader Ginsburg

There’s also some confusion where people type “RGB” when they actually mean RBG : Ruth Bader Ginsburg, the late U.S. Supreme Court justice.

  • Some blog posts and social content accidentally call her “RGB” instead of “RBG.”
  • Ruth Bader Ginsburg was a major legal figure and advocate for women’s rights, famous for her dissents and for reshaping gender equality law in the U.S.

So if you saw “RGB was a powerful advocate for women” in a quote or meme, it’s almost certainly a typo, and they mean RBG (Ruth Bader Ginsburg).

3. Online handles and brands named “RGB”

“RGB” is also a popular brand name / username / acronym , so in some forum contexts “rgb” could be:

  • A content creator or blogger using “RGB” or “RGB Guy” as a handle, often around graphics or programming.
  • A company acronym (e.g., RGB Technologies, RGB Group, RGB International, etc.), used in tech, creative agencies, and even gaming businesses.

If your question came from a specific subreddit, Discord, or niche forum, “rgb” there might be a particular user, dev, or brand that community knows. Without that local context, all I can say is: it’s a very common three-letter name used by lots of different people and companies.

4. How to figure out “your” RGB

To pin down who “rgb” is in the exact place you saw it, try:

  1. Look at the surrounding context
    • Are people talking about PC builds, keyboards, or monitors? Then it’s probably the color lighting / effects system (RGB lighting).
    • Are they talking about law, feminism, or U.S. Supreme Court cases? Then it’s almost certainly Ruth Bader Ginsburg, mistyped as “RGB.”
  1. Check for a profile or bio
    • On a forum, click the username “rgb” or similar to see their profile.
  2. See if it’s capitalized or stylized
    • “RGB lighting”, “RGB color” → color model.
    • “RBG” in quotes about women’s rights → Ruth Bader Ginsburg (even if they typo it as RGB).

Quick TL;DR

  • In tech/gaming/design, RGB = red–green–blue color model , not a person.
  • In legal/women’s-rights context, “RGB” is usually a typo for RBG (Ruth Bader Ginsburg).
  • “rgb” can also be a username or company name , and you’d need the specific site/context to know which one.

If you share where you saw “who is rgb” (e.g., a specific forum or quote), I can narrow it down more precisely.