#81210B (or 0x81210B) is unknown color: approx Falu Red. HEX triplet: 81, 21 and 0B. RGB value is (129,33,11). Sum of RGB (Red+Green+Blue) = 129+33+11=173 (22% of max value = 765). Red value is 129 (50.78% from 255 or 74.57% from 173); Green value is 33 (13.28% from 255 or 19.08% from 173); Blue value is 11 (4.69% from 255 or 6.36% from 173); Max value from RGB is 129 - color contains mainly: red. Hex color #81210B is not a web safe color. Web safe color analog (approx): #993300. Inversed color of #81210B is #7EDEF4. Grayscale: #3B3B3B. Windows color (decimal): -8314613 or 729473. OLE color: 729473.
HSL color Cylindrical-coordinate representation of color #81210B: hue angle of 11.19º degrees, saturation: 0.84, lightness: 0.27%. HSV value (or HSB Brightness) of color is 0.51% and HSV saturation: 0.91%. Process color model (Four color, CMYK) of #81210B is Cyan = 0, Magento = 0.74, Yellow = 0.91 and Black (K on CMYK) = 0.49.
<style> p { color: #81210B; } p { color: rgb(129,33,11); } H1.HeaderClassName { color: #81210B; } .AnyTagClassName { color: #81210B; } </style>
<style> a { background-color: #81210B; } a { background-color: rgb(129,33,11); } div.DivClassName { background-color: #81210B; } .BgClassName { background-color: #81210B; } </style>
<style> span { border-color: #81210B; } span { border-color: rgb(129,33,11); } td.TdClassName { border-color: #81210B; } .TagClassName { border-color: #81210B; } </style>