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Design & Image · 4 min read

What Is a Color Picker? How to Sample & Use Digital Colors

Whether you're designing a UI, writing CSS, or matching brand colors, a color picker gives you the exact code for any color. Here's how they work — and which format to use where.

Color Format Comparison

FormatExampleUsed In
HEX#6366f1CSS, HTML, design tools
RGBrgb(99, 102, 241)CSS, image processing
RGBArgba(99, 102, 241, 0.5)CSS with transparency
HSLhsl(239, 84%, 67%)CSS, more intuitive to adjust
CMYKC:59 M:58 Y:0 K:5Print design (Pantone, offset)

Frequently Asked Questions

A tool to select any color and get its exact code in HEX, RGB, HSL, CMYK, or other formats. Used by designers and developers to work with digital colors precisely.
Use a color picker tool to select the color and read its HEX value. In a browser, DevTools shows CSS color values in the element inspector.
HEX is a hex representation of RGB values. RGB uses 0–255 for red, green, blue. HSL uses hue (0–360°), saturation and lightness — easier for humans to adjust intuitively.
Use PickConverter's free Color Picker. Choose any color from a visual spectrum and get HEX, RGB, HSL, and CMYK codes instantly — no sign-up.
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Pick any color — get HEX, RGB, HSL

Visual color picker with all format codes. No sign-up.

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