#639D91 (or 0x639D91) is unknown color: approx Patina. HEX triplet: 63, 9D and 91. RGB value is (99,157,145). Sum of RGB (Red+Green+Blue) = 99+157+145=401 (53% of max value = 765). Red value is 99 (39.06% from 255 or 24.69% from 401); Green value is 157 (61.72% from 255 or 39.15% from 401); Blue value is 145 (57.03% from 255 or 36.16% from 401); Max value from RGB is 157 - color contains mainly: green. Hex color #639D91 is not a web safe color. Web safe color analog (approx): #669999. Inversed color of #639D91 is #9C626E. Grayscale: #8A8A8A. Windows color (decimal): -10248815 or 9543011. OLE color: 9543011.
HSL color Cylindrical-coordinate representation of color #639D91: hue angle of 167.59º degrees, saturation: 0.23, lightness: 0.5%. HSV value (or HSB Brightness) of color is 0.62% and HSV saturation: 0.37%. Process color model (Four color, CMYK) of #639D91 is Cyan = 0.37, Magento = 0, Yellow = 0.08 and Black (K on CMYK) = 0.38.
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