#21FF51 (or 0x21FF51) is unknown color: approx Malachite. HEX triplet: 21, FF and 51. RGB value is (33,255,81). Sum of RGB (Red+Green+Blue) = 33+255+81=369 (48% of max value = 765). Red value is 33 (13.28% from 255 or 8.94% from 369); Green value is 255 (100% from 255 or 69.11% from 369); Blue value is 81 (32.03% from 255 or 21.95% from 369); Max value from RGB is 255 - color contains mainly: green. Hex color #21FF51 is not a web safe color. Web safe color analog (approx): #33FF66. Inversed color of #21FF51 is #DE00AE. Grayscale: #A9A9A9. Windows color (decimal): -14549167 or 5373729. OLE color: 5373729.
HSL color Cylindrical-coordinate representation of color #21FF51: hue angle of 132.97º 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 #21FF51 is Cyan = 0.87, Magento = 0, Yellow = 0.68 and Black (K on CMYK) = 0.
<style> p { color: #21ff51; } p { color: rgb(33,255,81); } H1.HeaderClassName { color: #21ff51; } .AnyTagClassName { color: #21ff51; } </style>
<style> a { background-color: #21ff51; } a { background-color: rgb(33,255,81); } div.DivClassName { background-color: #21ff51; } .BgClassName { background-color: #21ff51; } </style>
<style> span { border-color: #21ff51; } span { border-color: rgb(33,255,81); } td.TdClassName { border-color: #21ff51; } .TagClassName { border-color: #21ff51; } </style>