![]() We always recommend a visual check before any major purchase. The conversion used is IEC 61966:2-1 D50 adapted which may differ from other conversions.These comparisons should therefore be taken as a guide only. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java. However, if selection is from a scanned or digital photograph on the screen, please also be aware that RGB values can also be affected by lighting, sunlight, shade, camera settings and the scanning or editing application/software used. If selecting the RGB values from a website, you can use the colour picker in Firefox or Google Chrome browsers. In addition, colours can appear different depending on the type of monitor and the progamme/software application. RGB values or representations can vary by programme, application and age of the screen or the computer. In addition to directly inputting the color code you want to convert, you can use the color palette to intuitively generate the color code. Please note that RGB and sRGB are methods to represent colours on a screen/monitor and cannot necessarily be reproduced in paint or printed ink colours. What is Color Code Converter This is a tool for real-time mutual conversion between hexadecimal color codes and RGBA / HSLA / HSVA. Int defaultTextViewColor = textView.getTextColors().Convert RGB values to the nearest standard colour int rgba_color = Color.parseColor("#8a000000") //textViewColor ![]() Here is some java code (works on Android API 24): //int rgb_background = Color.parseColor("#ffffff") //white background ![]() If the color is in non pre-multiplied color-space, then you can just discard the alpha channel. If the RGBA is in pre-multiplied color-space and is semi-transparent, you need to divide out alpha to get the correct RGB color. In my case, I wanted to convert an RGBA image to RGB and the following worked just as expected: rgbImage = cv2.cvtColor(npimage, cv2.COLOR_RGBA2RGB) version rgba(0,0,0,0) with matte rgb(ff,ff,ff) will be changed to rgb(0,0,0). This changed version works fine for me, because in prev. Solution provided by Andras Zoltan should be slightly changed to: Source => Target = (BGColor + Source) = To get the final 0-255 values for Target you simply multiply all the normalised values back up by 255, making sure you cap at 255 if any of the combined values exceed 1.0 (this is over-exposure and there are more complex algorithms dealing with this that involve whole-image processing etc.).ĮDIT: In your question you said you want a white background - in that case just fix BGColor to 255,255,255. When you want to make a color fully opaque, fully transparent or anywhere in between, you can choose to use RGBA or HEX. Target.B = ((1 - Source.A) * BGColor.B) + (Source.A * Source.B) Target.G = ((1 - Source.A) * BGColor.G) + (Source.A * Source.G) Target.R = ((1 - Source.A) * BGColor.R) + (Source.A * Source.R) Now, the conversion is defined as (in complete psuedo code here!): Source => Target = (BGColor + Source) = We'll call the result BGColor Note - if the background colour is also transparent, then you'll have to recurse the process for that first (again, choosing a matte) to get the source RGB for this operation. Normalise also the matte colour (black, white whatever).Normalise the RGBA values so that they're all between 0 and 1 - just divide each value by 255 to do this.convert from CMYK cyan / magenta / yellow / black to RRGGBB. convert from RGBA red green blue transparency to NCS-number (S0000-X00X) CMYK to HEX. There is an algorithm for this (from this wikipedia link): convert from RGBA red green blue transparency to Sherwin Williams -number (SW 0000) RGBA to NCS. This ends up being equal to answer below *Ī more specific answer, however, incorporates the alpha value into the actual colour result based on an opaque background colour (or 'matte' as it's referred to). I've therefore updated the formula below to be correct for the normal case. By definition, however, this won't work in most cases. If you want to have cool fonts, please also try our font keyboard to help easily get fonts at Font Keyboard iOS app and Font. Instead of doing this manually, there has to be a way via code to convert a colour with opacity to the equivalent 'solid' colour without opacity, so from a RGBA colour to a RGB colour. It comes with many options and it demonstrates instantly. Using the colour picker, I can get the equivalent colour: rgba (246,252,250,1) or rgb (246,252,250) without the alpha (opacity). ![]() ![]() It worked if alpha values were inverted from the normal. A RGBA and Hex Color CSS generator that helps you quickly convert and generate RGBA and Hex Color CSS declarations for your website. * A few comments have been raised that my original answer was not correct. I've upvoted Johannes' answer because he's right about that. ![]()
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