#21FFEF (or 0x21FFEF) is unknown color: approx Aqua. HEX triplet: 21, FF and EF. RGB value is (33,255,239). Sum of RGB (Red+Green+Blue) = 33+255+239=527 (69% of max value = 765). Red value is 33 (13.28% from 255 or 6.26% from 527); Green value is 255 (100% from 255 or 48.39% from 527); Blue value is 239 (93.75% from 255 or 45.35% from 527); Max value from RGB is 255 - color contains mainly: green. Hex color #21FFEF is not a web safe color. Web safe color analog (approx): #33FFFF. Inversed color of #21FFEF is #DE0010. Grayscale: #BABABA. Windows color (decimal): -14549009 or 15728417. OLE color: 15728417.
HSL color Cylindrical-coordinate representation of color #21FFEF: hue angle of 175.68º 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 #21FFEF is Cyan = 0.87, Magento = 0, Yellow = 0.06 and Black (K on CMYK) = 0.
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