#21B4A8 (or 0x21B4A8) is unknown color: approx Light Sea Green. HEX triplet: 21, B4 and A8. RGB value is (33,180,168). Sum of RGB (Red+Green+Blue) = 33+180+168=381 (50% of max value = 765). Red value is 33 (13.28% from 255 or 8.66% from 381); Green value is 180 (70.70% from 255 or 47.24% from 381); Blue value is 168 (66.02% from 255 or 44.09% from 381); Max value from RGB is 180 - color contains mainly: green. Hex color #21B4A8 is not a web safe color. Web safe color analog (approx): #33CC99. Inversed color of #21B4A8 is #DE4B57. Grayscale: #868686. Windows color (decimal): -14568280 or 11056161. OLE color: 11056161.
HSL color Cylindrical-coordinate representation of color #21B4A8: hue angle of 175.1º degrees, saturation: 0.69, lightness: 0.42%. HSV value (or HSB Brightness) of color is 0.71% and HSV saturation: 0.82%. Process color model (Four color, CMYK) of #21B4A8 is Cyan = 0.82, Magento = 0, Yellow = 0.07 and Black (K on CMYK) = 0.29.
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<style> a { background-color: #21B4A8; } a { background-color: rgb(33,180,168); } div.DivClassName { background-color: #21B4A8; } .BgClassName { background-color: #21B4A8; } </style>
<style> span { border-color: #21B4A8; } span { border-color: rgb(33,180,168); } td.TdClassName { border-color: #21B4A8; } .TagClassName { border-color: #21B4A8; } </style>