Free Online Random Color Generator
A random color generator emits a uniformly-random sRGB hex using `crypto.getRandomValues`, with optional channel locks to keep one or two channels constant across rolls.
Your data is processed entirely in your browser and never sent to any server.
Uses crypto.getRandomValues — the same cryptographically secure source as our password generator. Lock channels to constrain results.
How to Use This Tool
- Click Generate to produce a new random color.
- Toggle the R, G or B lock buttons to keep individual channels fixed across generations.
- Click Copy hex to send the hex to your clipboard.
- Repeat until you find a color you like.
What Is a Random Color Generator?
Pure randomness sounds simple, but most JavaScript random functions are pseudo-random and biased. This generator uses `crypto.getRandomValues` — the browser's cryptographically secure source, the same one used to seed TLS keys — so each roll is unbiased and unpredictable.
Designers use random rolls as starter inspiration when a blank canvas feels intimidating; developers use them as placeholder backgrounds when scaffolding a UI before a designer is hired; QA testers use them to verify color-handling code copes with arbitrary input.
Lock any of the R, G or B channels with the lock toggles to keep that channel fixed while the others continue to roll. Locking the blue channel and rolling repeatedly sweeps through hues with a consistent blue undertone; locking two channels lets you scan just one. Nothing is stored — close the tab and the history is gone.
Frequently Asked Questions
Is the randomness truly random?
What do the lock channels do?
What is this useful for?
Published by the WeGotEveryTool team. We build and test every tool in-house and update pages when the underlying spec, formula, or recommendation changes.
Reviewed: May 2026. Disclaimer: this tool is provided as-is for general informational use. For decisions with material consequences (medical, legal, financial, security) verify results against a qualified professional source.
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