#57FF21 (or 0x57FF21) is unknown color: approx Bright Green. HEX triplet: 57, FF and 21. RGB value is (87,255,33). Sum of RGB (Red+Green+Blue) = 87+255+33=375 (49% of max value = 765). Red value is 87 (34.38% from 255 or 23.2% from 375); Green value is 255 (100% from 255 or 68% from 375); Blue value is 33 (13.28% from 255 or 8.8% from 375); Max value from RGB is 255 - color contains mainly: green. Hex color #57FF21 is not a web safe color. Web safe color analog (approx): #66FF33. Inversed color of #57FF21 is #A800DE. Grayscale: #B4B4B4. Windows color (decimal): -11010271 or 2228055. OLE color: 2228055.
HSL color Cylindrical-coordinate representation of color #57FF21: hue angle of 105.41º degrees, saturation: 1, lightness: 0.56%. HSV value (or HSB Brightness) of color is 1% and HSV saturation: 0.87%. Process color model (Four color, CMYK) of #57FF21 is Cyan = 0.66, Magento = 0, Yellow = 0.87 and Black (K on CMYK) = 0.
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<style> a { background-color: #57FF21; } a { background-color: rgb(87,255,33); } div.DivClassName { background-color: #57FF21; } .BgClassName { background-color: #57FF21; } </style>
<style> span { border-color: #57FF21; } span { border-color: rgb(87,255,33); } td.TdClassName { border-color: #57FF21; } .TagClassName { border-color: #57FF21; } </style>