#666788 (or 0x666788) is unknown color: approx Comet. HEX triplet: 66, 67 and 88. RGB value is (102,103,136). Sum of RGB (Red+Green+Blue) = 102+103+136=341 (45% of max value = 765). Red value is 102 (40.23% from 255 or 29.91% from 341); Green value is 103 (40.62% from 255 or 30.21% from 341); Blue value is 136 (53.52% from 255 or 39.88% from 341); Max value from RGB is 136 - color contains mainly: blue. Hex color #666788 is not a web safe color. Web safe color analog (approx): #666699. Inversed color of #666788 is #999877. Grayscale: #6A6A6A. Windows color (decimal): -10066040 or 8939366. OLE color: 8939366.
HSL color Cylindrical-coordinate representation of color #666788: hue angle of 238.24º degrees, saturation: 0.14, lightness: 0.47%. HSV value (or HSB Brightness) of color is 0.53% and HSV saturation: 0.25%. Process color model (Four color, CMYK) of #666788 is Cyan = 0.25, Magento = 0.24, Yellow = 0 and Black (K on CMYK) = 0.47.
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<style> span { border-color: #666788; } span { border-color: rgb(102,103,136); } td.TdClassName { border-color: #666788; } .TagClassName { border-color: #666788; } </style>