Random Colour Generator
Generate a brand new random colour at the click of a button, complete with its HEX, RGB, HSL and approximate CMYK values.
Random Colour
HEX: #4A7C59
RGB: rgb(74, 124, 89)
HSL: hsl(138, 25%, 39%)
Approx. CMYK: C 40%, M 0%, Y 28%, K 51%
How to Use the Random Colour Generator
Click the Generate Random Colour button and the tool instantly picks a brand new colour, showing its HEX, RGB, HSL and approximate CMYK values. Click again for as many fresh colours as you like, and use the Copy buttons to grab any value you want to keep.
How It Works
Each click generates three random values between 0 and 255 for red, green and blue, combines them into a HEX colour code, then converts that HEX code into RGB, HSL and an approximate CMYK equivalent for reference. Every colour in the full RGB colour space has an equal chance of appearing.
Using Random Colours in Your Creative Practice
A random colour generator is a handy way to break out of familiar colour habits, spark a new palette idea, or set yourself a creative constraint by building an entire piece around one unexpected colour. It also works well as a quick warm-up exercise: generate a colour and see how many different moods or subjects you can mix from it.
Frequently Asked Questions
How does the Random Colour Generator work?
Each click generates three random values between 0 and 255 for red, green and blue, combines them into a HEX colour code, and shows the equivalent RGB, HSL and approximate CMYK values.
Is every colour equally likely to appear?
Yes. Every colour in the full RGB colour space (over 16 million combinations) has an equal chance of being generated.
Can I get the same colour twice?
Yes, it is possible, though unlikely, since there are more than 16 million possible colours to choose from.
Can I copy the generated colour values?
Yes. Use the Copy HEX, Copy RGB or Copy HSL buttons to copy the corresponding value to your clipboard.
Does the tool save the colours I generate?
No. Colours are generated fresh in your browser each time and nothing is saved or sent to a server.
Can I use this for mixing paint?
The tool works with digital HSL and CMYK approximations. Real paints and pigments mix differently to light, so always test a physical swatch before committing to a final artwork.
Why is the CMYK value described as approximate?
CMYK values depend on the specific inks, printer and paper used. The value shown is a mathematical conversion from RGB and is a useful estimate rather than an exact print match.
What can I use a random colour for?
Random colours are useful for breaking out of familiar colour habits, sparking new palette ideas, or setting yourself a creative constraint to design around.
Is this tool free to use?
Yes, the Random Colour Generator is completely free to use, with no account, sign-up or download required.
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