#531818 (or 0x531818) is unknown color: approx Red Oxide. HEX triplet: 53, 18 and 18. RGB value is (83,24,24). Sum of RGB (Red+Green+Blue) = 83+24+24=131 (17% of max value = 765). Red value is 83 (32.81% from 255 or 63.36% from 131); Green value is 24 (9.77% from 255 or 18.32% from 131); Blue value is 24 (9.77% from 255 or 18.32% from 131); Max value from RGB is 83 - color contains mainly: red. Hex color #531818 is not a web safe color. Web safe color analog (approx): #660000. Inversed color of #531818 is #ACE7E7. Grayscale: #292929. Windows color (decimal): -11331560 or 1579091. OLE color: 1579091.
HSL color Cylindrical-coordinate representation of color #531818: hue angle of 0º degrees, saturation: 0.55, lightness: 0.21%. HSV value (or HSB Brightness) of color is 0.33% and HSV saturation: 0.71%. Process color model (Four color, CMYK) of #531818 is Cyan = 0, Magento = 0.71, Yellow = 0.71 and Black (K on CMYK) = 0.67.
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