#281D21 (or 0x281D21) is unknown color: approx Aubergine. HEX triplet: 28, 1D and 21. RGB value is (40,29,33). Sum of RGB (Red+Green+Blue) = 40+29+33=102 (13% of max value = 765). Red value is 40 (16.02% from 255 or 39.22% from 102); Green value is 29 (11.72% from 255 or 28.43% from 102); Blue value is 33 (13.28% from 255 or 32.35% from 102); Max value from RGB is 40 - color contains mainly: red. Hex color #281D21 is not a web safe color. Web safe color analog (approx): #333333. Inversed color of #281D21 is #D7E2DE. Grayscale: #202020. Windows color (decimal): -14148319 or 2170152. OLE color: 2170152.
HSL color Cylindrical-coordinate representation of color #281D21: hue angle of 338.18º degrees, saturation: 0.16, lightness: 0.14%. HSV value (or HSB Brightness) of color is 0.16% and HSV saturation: 0.28%. Process color model (Four color, CMYK) of #281D21 is Cyan = 0, Magento = 0.28, Yellow = 0.17 and Black (K on CMYK) = 0.84.
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<style> span { border-color: #281D21; } span { border-color: rgb(40,29,33); } td.TdClassName { border-color: #281D21; } .TagClassName { border-color: #281D21; } </style>