URL：https://media.istockphoto.com/id/2023901168/ja/ベクター/rgb-color-wheel-spectrum-selector-picker-rgb-palette-logo-color-rainbow-diagram-circle.jpg?s=612x612&w=0&k=20&c=RJmG3IuYhW26is_8hiMHM10dlOABp22B-HdwgOena5U=
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