#646688 (or 0x646688) is unknown color: approx Comet. HEX triplet: 64, 66 and 88. RGB value is (100,102,136). Sum of RGB (Red+Green+Blue) = 100+102+136=338 (44% of max value = 765). Red value is 100 (39.45% from 255 or 29.59% from 338); Green value is 102 (40.23% from 255 or 30.18% from 338); Blue value is 136 (53.52% from 255 or 40.24% from 338); Max value from RGB is 136 - color contains mainly: blue. Hex color #646688 is not a web safe color. Web safe color analog (approx): #666699. Inversed color of #646688 is #9B9977. Grayscale: #696969. Windows color (decimal): -10197368 or 8939108. OLE color: 8939108.
HSL color Cylindrical-coordinate representation of color #646688: hue angle of 236.67º degrees, saturation: 0.15, lightness: 0.46%. HSV value (or HSB Brightness) of color is 0.53% and HSV saturation: 0.26%. Process color model (Four color, CMYK) of #646688 is Cyan = 0.26, Magento = 0.25, Yellow = 0 and Black (K on CMYK) = 0.47.
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