Sometimes I see a nice color I like online and I'd like to be able to copy that color to an object in Blender. I did try Firefox> Tools> Web Developer> Eyedropper to copy hex value, but upon pasting into Blender material color field the color changes to something completely different than what I copied. Just wondering if there's an easy way I'm overlooking. Blender eyedropper only seems to work when clicking something inside Blender. Thanks for any ideas.
Load an image in Image editor. Use the color picker to sample the color from the image. All the objects are affected by the light. It will never be the same as sampled because the light and shadows. You have to play with lights and its RGB or HSV values to get close as possible.
You can also load the Image/page here (http://imagecolorpicker.com/) and pick the colour. Then copy the hex-data and paste it in Blender