What Is a Color Picker & Converter?
This tool combines two genuine capabilities: picking a real color directly from anywhere on your screen using the browser's native EyeDropper API where supported, and converting any color between HEX, RGB, and HSL formats using accurate, standard color-space math. Every conversion is calculated correctly from the actual color values entered - nothing is approximated or rounded incorrectly.
How to Use the Color Picker & Converter
- Click "Pick Color from Screen" to sample any pixel color from anywhere on your screen, including outside the browser window, where the EyeDropper API is supported.
- Alternatively, click the swatch color picker for a standard color selection interface.
- Or type directly into the HEX field to set a specific value.
- All three formats - HEX, RGB, and HSL - update together automatically to stay in sync.
How It Works
The screen picker uses the browser's native EyeDropper API, which lets you sample an
actual pixel color from anywhere on your screen, even outside the browser window itself, returning a
genuine hex value for that pixel. Behind the scenes, this tool converts between HEX and RGB using standard
bitwise math on the hex value's numeric components, and calculates HSL using the standard RGB-to-HSL
conversion formula, which derives hue, saturation, and lightness from the relative proportions of red,
green, and blue.
Understanding Your Results
- All three format fields stay in sync as you change one - the conversion math is working correctly and consistently across formats.
- Picked color matches what you expected from the screen - the EyeDropper API is sampling accurately; results reflect the actual rendered pixel color, including any color profile or display calibration currently affecting your screen.
- "Pick Color from Screen" button is disabled - your browser doesn't currently support the EyeDropper API, which is presently limited to Chromium-based browsers; use the swatch picker or manual HEX input instead.
Browser Limitations
The EyeDropper API is currently supported only in Chromium-based browsers like Chrome and Edge; Firefox and Safari don't yet implement it, though the manual color picker and text input conversion work identically across all browsers regardless. The picked color reflects exactly what's rendered on your screen at that pixel, which can be affected by your display's own color profile or calibration - this tool reports the color your browser sampled, not an independently color-managed value.
Common Mistakes to Avoid
- Typing an invalid or incomplete HEX code - a valid HEX value needs exactly 3 or 6 hexadecimal characters; partial input won't update the other fields until it's complete.
- Expecting the eyedropper to work in an unsupported browser - check for a Chromium-based browser if this specific feature is important to your workflow.
- Assuming HSL values are the same scale as RGB - hue runs 0–360 degrees while saturation and lightness are percentages, a different scale entirely from RGB's 0–255 range.
Frequently Asked Questions
Can the eyedropper pick colors from outside my browser window?
Yes, on supporting browsers, the EyeDropper API can sample a pixel color from anywhere on your screen, not just within the current webpage.
Why doesn't the eyedropper button work for me?
The EyeDropper API is currently limited to Chromium-based browsers; if you're on Firefox or Safari, use the standard swatch picker or type a HEX value directly instead.
Are HEX, RGB, and HSL always exactly interchangeable?
Yes, they represent the same underlying color through different mathematical models, so converting between them and back always produces the identical color, though minor rounding can occur with repeated conversions between formats.
Is my picked color data sent anywhere?
No, all color picking and conversion happens entirely within your browser - nothing is transmitted or stored anywhere.
What's the difference between RGB and HSL?
RGB defines a color by its red, green, and blue light intensities, while HSL defines it by hue, saturation, and lightness - a more intuitive model for adjusting a color's shade or brightness directly.
Conclusion
Whether you're matching a color from a design, a photo, or anywhere else on your screen, this gives you an accurate pick and instant conversion across the formats most design and development work actually needs. For checking your display's own color accuracy, see the Monitor Color Test.