#280717 (or 0x280717) is unknown color: approx Blackberry. HEX triplet: 28, 07 and 17. RGB value is (40,7,23). Sum of RGB (Red+Green+Blue) = 40+7+23=70 (9% of max value = 765). Red value is 40 (16.02% from 255 or 57.14% from 70); Green value is 7 (3.12% from 255 or 10% from 70); Blue value is 23 (9.38% from 255 or 32.86% from 70); Max value from RGB is 40 - color contains mainly: red. Hex color #280717 is not a web safe color. Web safe color analog (approx): #330000. Inversed color of #280717 is #D7F8E8. Grayscale: #121212. Windows color (decimal): -14153961 or 1509160. OLE color: 1509160.
HSL color Cylindrical-coordinate representation of color #280717: hue angle of 330.91º degrees, saturation: 0.7, lightness: 0.09%. HSV value (or HSB Brightness) of color is 0.16% and HSV saturation: 0.82%. Process color model (Four color, CMYK) of #280717 is Cyan = 0, Magento = 0.83, Yellow = 0.43 and Black (K on CMYK) = 0.84.
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<style> a { background-color: #280717; } a { background-color: rgb(40,7,23); } div.DivClassName { background-color: #280717; } .BgClassName { background-color: #280717; } </style>
<style> span { border-color: #280717; } span { border-color: rgb(40,7,23); } td.TdClassName { border-color: #280717; } .TagClassName { border-color: #280717; } </style>