I'll help you test this webpage by following the instructions. Let me start by taking a screenshot to see the current state of the page.
Screenshot
I can see a Color Picker interface with:
1. A color wheel showing the full spectrum of colors
2. A white circle indicator on the color wheel (currently positioned in the center)
3. A preview area below labeled "Selected Color" that is currently white/empty
4. A crosshair in the center of the color wheel
Now I'll click on a color on the color wheel. I'll click on the blue area in the upper left portion of the wheel.
Screenshot
Perfect! The test has been completed successfully. I can see that:
1. I clicked on a color on the color wheel (I clicked on the blue/purple area)
2. The crosshair has moved to the clicked position on the color wheel
3. The preview area (labeled "Selected Color") now shows the selected color - it's displaying a blue/purple color that matches the area I clicked on the color wheel
The webpage is functioning as expected. When clicking on a color in the color wheel, the preview area correctly updates to show the selected color.
<answer>PASS</answer>