For years, designers and developers have wrestled with the limitations of traditional color spaces like RGB and HSL. Creating a harmonious color palette or a smooth gradient often results in "muddy" transitions or unexpected shifts in brightness. This is a common problem because these color spaces don’t align with how the human eye perceives color. The solution? A new generation of color models, and a brilliant web tool to help you use them: OKLCH

What is it?
oklch.net is a powerful and intuitive color picker and converter built specifically for the OKLCH color space. Developed to be "perceptually uniform," OKLCH is a modern color model that ensures equal changes in its values result in equal changes in how we see the color. The name stands for OK Lightness, Chroma, and Hue, which are the three properties you manipulate to create your perfect color. This tool isn't just about picking colors; it's about giving you predictable, consistent control that was never possible with older color systems.
What makes it stand out?
The OKLCH color space, and this tool built around it, offer a revolutionary approach to color work. Here's what makes it so valuable:
- Perceptually Uniformity: Unlike HSL, where changing the hue can also change the perceived brightness, OKLCH provides consistent lightness. This makes it incredibly easy to create color palettes and gradients that are visually harmonious and don't surprise you with unexpected shifts.
- Wide Gamut Support: OKLCH can represent a far greater range of colors than the standard sRGB gamut. This means you can design with brighter, more vibrant colors that are ready for modern displays.
- Intuitive Visualization: The tool goes beyond simple sliders. It features visual graphs and a 3D model of the color space, allowing you to see exactly how your color choices affect the L, C, and H values. This makes learning and using the color space incredibly straightforward.
- Built-in Conversions and Fallbacks: The website serves as a great converter, allowing you to input colors from HEX, RGB, or HSL and see their OKLCH equivalent. It also provides a "closest fallback" color for devices that don't support wide-gamut displays, ensuring your designs look great everywhere.
How do you use it?
Using oklch.net is a hands-on learning experience. You can:
- Enter a color value you already know (like a HEX code) to see its OKLCH representation.
- Adjust the three main sliders for Lightness, Chroma, and Hue to explore and create new colors.
- Use the interactive graphs to click and drag your way to a new color, observing how it changes in real-time.
- Copy the CSS-ready
oklch()
function code to use in your projects.
The tool provides a seamless way to experiment and understand this new, more powerful way of handling color.
Final Thoughts
OKLCH is an indispensable tool for any web developer or designer ready to embrace the future of web color. It solves a long-standing problem with elegance and provides a visual, intuitive interface for working with a complex but powerful color space. By making it easy to create vibrant gradients, accessible designs, and perceptually balanced palettes, oklch.net proves that the right tool can transform the way we think about—and use—color on the web.