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2. javascript - RGB to hex and hex to RGB - Stack Overflow

   stackoverflow.com/questions/5623838

   How to convert colors in RGB format to hex format and vice versa? For example, convert '#0080C0' to (0, 128, 192).

3. Formula to determine perceived brightness of RGB color

   stackoverflow.com/questions/596216

   For clarity, the formulas that use a square root need to be. sqrt (coefficient * (colour_value^2)) not. sqrt ( (coefficient * colour_value))^2. The proof of this lies in the conversion of a R=G=B triad to greyscale R. That will only be true if you square the colour value, not the colour value times coefficient.

4. Convert HEX to RGB in Excel - Stack Overflow

   stackoverflow.com/questions/45833797

   The OP isn't looking to display the colours in Excel, so this doesn't seem relevant. The OP's question was how to convert hex colour values into RGB colour values within Excel, which can be accomplished using the HEX2DEC() function (without any restriction on the number of possible colours past that of hex colour codes). –

5. Converting an RGB color tuple to a hexidecimal string

   stackoverflow.com/questions/3380726

   I have created a full python program for it the following functions can convert rgb to hex and vice versa. return "#{:02x}{:02x}{:02x}".format(r,g,b) return tuple(map(ord,hexcode[1:].decode('hex'))) You can see the full code and tutorial at the following link : RGB to Hex and Hex to RGB conversion using Python.

6. How do I get the corresponding Hex value of an RGB color in...

   stackoverflow.com/questions/6003324

   Public Function getHexCol(a As Range) ' In excel type in for example getHexCol(A1) to get the hexcode of the color on A1. Dim strColour As String. Dim hexColour As String. Dim nColour As Long. Dim nR As Long, nB As Long, nG As Long. strColour = a.Interior.Color. If Len(strColour) = 0 Then Exit Function.

7. Converting hex color to RGB and vice-versa - Stack Overflow

   stackoverflow.com/questions/214359

   If you want to go between 0 and 255 you need to do a small conversion. Specifically, rgb = colors.hex2color(hex_string) return tuple([int(255*x) for x in rgb]) return colors.rgb2hex([1.0*x/255 for x in rgb_tuple]) The other note is that colors.hex2color only accepts valid hex color strings.

8. algorithm - HSL to RGB color conversion - Stack Overflow

   stackoverflow.com/questions/2353211

   If you're looking for something that definitely conforms with the CSS semantics for HSL and RGB, you could use the algorithm specified in the CSS 3 specification, which reads: HOW TO RETURN hsl.to.rgb(h, s, l): SELECT: l<=0.5: PUT l*(s+1) IN m2. ELSE: PUT l+s-l*s IN m2.

9. colors - Converting Hex to RGB value in Python - Stack Overflow

   stackoverflow.com/questions/29643352

   Working off Jeremy's response here: Converting hex color to RGB and vice-versa I was able to get a python program to convert preset colour hex codes (example #B4FBB8), however from an end-user

10. colors - Fastest formula to get Hue from RGB - Stack Overflow

    stackoverflow.com/questions/23090019

    Convert the RGB values to the range 0-1, this can be done by dividing the value by 255 for 8-bit color depth (r,g,b - are given values): R = r / 255 = 0.09 G = g / 255 = 0.38 B = b / 255 = 0.46 Find the minimum and maximum values of R, G and B. Depending on what RGB color channel is the max value. The three different formulas are:

11. algorithm - Convert light frequency to RGB? - Stack Overflow

    stackoverflow.com/questions/1472514

    Convert XYZ to RGB. Clip components to [0..1] and multiply by 255 to fit in the unsigned byte range. Steps 1 and 2 may vary. There are several color matching functions, available as tables or as analytic approximations (suggested by @Tarc and @Haochen Xie). Tables are best if you need a smooth preсise result.