#646D91 (or 0x646D91) is unknown color: approx Waikawa Grey. HEX triplet: 64, 6D and 91. RGB value is (100,109,145). Sum of RGB (Red+Green+Blue) = 100+109+145=354 (46% of max value = 765). Red value is 100 (39.45% from 255 or 28.25% from 354); Green value is 109 (42.97% from 255 or 30.79% from 354); Blue value is 145 (57.03% from 255 or 40.96% from 354); Max value from RGB is 145 - color contains mainly: blue. Hex color #646D91 is not a web safe color. Web safe color analog (approx): #666699. Inversed color of #646D91 is #9B926E. Grayscale: #6E6E6E. Windows color (decimal): -10195567 or 9530724. OLE color: 9530724.
HSL color Cylindrical-coordinate representation of color #646D91: hue angle of 228º degrees, saturation: 0.18, lightness: 0.48%. HSV value (or HSB Brightness) of color is 0.57% and HSV saturation: 0.31%. Process color model (Four color, CMYK) of #646D91 is Cyan = 0.31, Magento = 0.25, Yellow = 0 and Black (K on CMYK) = 0.43.
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