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Some software can have decimal RGBA numbers in scale 0.1 or 0.100% and the format can be mixed like it was in your example. The hex version of those RGBA numbers is 80818283 as you should well know if you say you are a programmer. Inkscape has scale 0.255 for R, G, B and Alpha. See for example Inkscape's coloring dialog (to use it you must have a dummy shape to be colored, I drew a rectangle): RGBA to hex and backwards conversions have no losses except rounding errors, if the numbers are scaled. So the only person who can do the conversion right is you, but not for all possible systems. At simplest you need to know what the background color behind your color is to do the conversion.Īlthough, that is if one is incredibly naive, there is no guarantee that the conversion you do is same on a different computer/ different browser than yours as it isn't specified anywhere in what color space the alpha blending should take place. Sure they look different because you changed base from 10 to 16 but the numbers are the same (this simply because the definition of a number doesent care how its represented).Ĭonversion from RGBA to RGB can not be done with the information you have presented, one needs more info. This means that there is no loss to conversion between RGB and html "hex" valuesīecause no conversion is happening the numbers are the same. Now HTML color inputs are restrivcted to RGB color (only). For any other bit depth loss is the same as changing to 8 bit which is the best most browsers can do anyway. There is no conversion from 8 bit per channel color so there is no data loss. Which is a nifty way of keeping databytes aligned with the underlying computer memory,and thus always use the same width. Its just a indication that the numbers are stored in hexadecimal. This also depends on the color profiles used. If you have a CMYK JPG, PSD or TIFF file, open it and view it on Ps or another program like PhotoPaint that have good color management.
#COLOR CONVERTER RGB HEX PDF#
For example, if you have a PDF file as a sample, open it in Adobe Reader and measure the color from there. Take a standalone picker, but it is important that you open the file on a program that accurately sows the color. If someone sent you a file on that color mode, and you need to match the electronic version of the color, you should use the option 2 I described. If you have not any printed material, and you still need a duller look, you can simply tweak the file. Where you need to match a printed material to an electronic version.īasically, a CMYK image has a duller look, because it is simulating the smaller gamut of a print.
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For web design, you should not use CMYK color mode on images, except in my opinion, in one case. I need to complement a bit regarding CMYK. There is no real advantage of using HEX values. In my opinion, this is the most flexible notation for colors. Take a standalone color picker to measure the computed values of the color you have on the background you also have. Opacity, the same as the alpha value will have a decimal notation. that is the whole point of transparency.Ĭonvert the RGB values to HEX (without the alpha value) and add after that an opacity CSS property. If you put another color the overall color will change. RGB A to HEX, will not because we do not even know what is beneath the color. RGB to HEX will give you the same exact color. I will only complement the other answers.