HTML Color Codes Generator
Generate HTML and CSS color codes in HEX, RGB and HSL, preview each color and copy the format that fits your project.
Create a single color or a palette with up to 12 colors. Everything runs in your browser, with no server upload.
Generated HTML color codes
Local generation: this tool does not send your colors to servers.
Quick answer
The HTML color codes generator creates HEX, RGB and HSL values ready for HTML, CSS, UI components, prototypes and visual guides. You can generate random colors, create a harmonic palette or convert a manual color.
How to use the HTML Color Codes generator
Choose a base color or enter a HEX value, select the generation mode, define how many colors you want and click generate. The result shows a visual swatch and the codes in HEX, RGB and HSL.
Available options
Random mode creates independent colors. Harmonic palette mode uses the base color and distributes variations on the HSL color wheel. The main format controls which code appears first in the copyable result.
How the codes are generated
The tool converts colors between HEX, RGB and HSL in the browser. For palettes, it adjusts hue, saturation and lightness in a controlled way to create useful interface combinations.
Practical example
Input: #0A66C2. Possible outputs: HEX #0A66C2, RGB rgb(10, 102, 194) and HSL hsl(210, 90%, 40%). These values can be pasted directly into CSS.
How to reuse the result
Use HEX for simple styles, RGB when you need opacity variations through rgba(), and HSL when you want to adjust hue, saturation or lightness more easily.
Useful tips
Check contrast before publishing, especially for text and buttons. For professional interfaces, use a small set of primary colors and reserve variations for hover, focus and alert states.
Frequently asked questions
What are HTML color codes?
They are values used in HTML and CSS to represent colors, including HEX, RGB, RGBA, HSL and color names.
Which format should I use: HEX, RGB or HSL?
HEX is convenient for simple styles. RGB is useful with opacity. HSL makes hue, saturation and lightness easier to adjust.
Can I use the generated colors in CSS?
Yes. The generated values can be used directly in CSS properties such as color, background-color, border-color and box-shadow.
Are colors sent to a server?
No. Generation and conversion happen in your browser.