#21303E (or 0x21303E) is unknown color: approx Midnight. HEX triplet: 21, 30 and 3E. RGB value is (33,48,62). Sum of RGB (Red+Green+Blue) = 33+48+62=143 (18% of max value = 765). Red value is 33 (13.28% from 255 or 23.08% from 143); Green value is 48 (19.14% from 255 or 33.57% from 143); Blue value is 62 (24.61% from 255 or 43.36% from 143); Max value from RGB is 62 - color contains mainly: blue. Hex color #21303E is not a web safe color. Web safe color analog (approx): #333333. Inversed color of #21303E is #DECFC1. Grayscale: #2D2D2D. Windows color (decimal): -14602178 or 4075553. OLE color: 4075553.
HSL color Cylindrical-coordinate representation of color #21303E: hue angle of 208.97º degrees, saturation: 0.31, lightness: 0.19%. HSV value (or HSB Brightness) of color is 0.24% and HSV saturation: 0.47%. Process color model (Four color, CMYK) of #21303E is Cyan = 0.47, Magento = 0.23, Yellow = 0 and Black (K on CMYK) = 0.76.
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<style> a { background-color: #21303E; } a { background-color: rgb(33,48,62); } div.DivClassName { background-color: #21303E; } .BgClassName { background-color: #21303E; } </style>
<style> span { border-color: #21303E; } span { border-color: rgb(33,48,62); } td.TdClassName { border-color: #21303E; } .TagClassName { border-color: #21303E; } </style>