#181F37 (or 0x181F37) is unknown color: approx Midnight Express. HEX triplet: 18, 1F and 37. RGB value is (24,31,55). Sum of RGB (Red+Green+Blue) = 24+31+55=110 (14% of max value = 765). Red value is 24 (9.77% from 255 or 21.82% from 110); Green value is 31 (12.5% from 255 or 28.18% from 110); Blue value is 55 (21.88% from 255 or 50% from 110); Max value from RGB is 55 - color contains mainly: blue. Hex color #181F37 is not a web safe color. Web safe color analog (approx): #003333. Inversed color of #181F37 is #E7E0C8. Grayscale: #1F1F1F. Windows color (decimal): -15196361 or 3612440. OLE color: 3612440.
HSL color Cylindrical-coordinate representation of color #181F37: hue angle of 226.45º degrees, saturation: 0.39, lightness: 0.15%. HSV value (or HSB Brightness) of color is 0.22% and HSV saturation: 0.56%. Process color model (Four color, CMYK) of #181F37 is Cyan = 0.56, Magento = 0.44, Yellow = 0 and Black (K on CMYK) = 0.78.
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