#663991 (or 0x663991) is unknown color: approx Royal Purple. HEX triplet: 66, 39 and 91. RGB value is (102,57,145). Sum of RGB (Red+Green+Blue) = 102+57+145=304 (40% of max value = 765). Red value is 102 (40.23% from 255 or 33.55% from 304); Green value is 57 (22.66% from 255 or 18.75% from 304); Blue value is 145 (57.03% from 255 or 47.70% from 304); Max value from RGB is 145 - color contains mainly: blue. Hex color #663991 is not a web safe color. Web safe color analog (approx): #663399. Inversed color of #663991 is #99C66E. Grayscale: #505050. Windows color (decimal): -10077807 or 9517414. OLE color: 9517414.
HSL color Cylindrical-coordinate representation of color #663991: hue angle of 270.68º degrees, saturation: 0.44, lightness: 0.4%. HSV value (or HSB Brightness) of color is 0.57% and HSV saturation: 0.61%. Process color model (Four color, CMYK) of #663991 is Cyan = 0.30, Magento = 0.61, Yellow = 0 and Black (K on CMYK) = 0.43.
<style> p { color: #663991; } p { color: rgb(102,57,145); } H1.HeaderClassName { color: #663991; } .AnyTagClassName { color: #663991; } </style>
<style> a { background-color: #663991; } a { background-color: rgb(102,57,145); } div.DivClassName { background-color: #663991; } .BgClassName { background-color: #663991; } </style>
<style> span { border-color: #663991; } span { border-color: rgb(102,57,145); } td.TdClassName { border-color: #663991; } .TagClassName { border-color: #663991; } </style>