Convert Hex (int) to Color/Color32?

Question

Hey, I need to get better formula for converting Hex as integer to Color or Color32 form in Unity. Can someone give me a hint?

Answer 1

Best Answer

Answer by drudiverse · Oct 19, 2014 at 10:13 AM

looked for hex to rgb on google forums. unity uses rgba color. try this page... http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb

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$$anonymous$$ · Oct 19, 2014 at 10:17 AM 0

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Awesome, Im using this method now Thanks!

 function hexToRgb(hex) {
     var bigint = parseInt(hex, 16);
     var r = (bigint >> 16) & 255;
     var g = (bigint >> 8) & 255;
     var b = bigint & 255;
 
     return r + "," + g + "," + b;
 }

Answer 2

Answer by Taylor-Libonati · Feb 24, 2015 at 08:48 PM

Using a modified version of this: http://wiki.unity3d.com/index.php?title=HexConverter Here is what I have been using:

     // Note that Color32 and Color implictly convert to each other. You may pass a Color object to this method without first casting it.
     public static string colorToHex(Color32 color)
     {
         string hex = color.r.ToString("X2") + color.g.ToString("X2") + color.b.ToString("X2");
         return hex;
     }
     
     public static Color hexToColor(string hex)
     {
         hex = hex.Replace ("0x", "");//in case the string is formatted 0xFFFFFF
         hex = hex.Replace ("#", "");//in case the string is formatted #FFFFFF
         byte a = 255;//assume fully visible unless specified in hex
         byte r = byte.Parse(hex.Substring(0,2), System.Globalization.NumberStyles.HexNumber);
         byte g = byte.Parse(hex.Substring(2,2), System.Globalization.NumberStyles.HexNumber);
         byte b = byte.Parse(hex.Substring(4,2), System.Globalization.NumberStyles.HexNumber);
         //Only use alpha if the string has enough characters
         if(hex.Length == 8){
             a = byte.Parse(hex.Substring(6,2), System.Globalization.NumberStyles.HexNumber);
         }
         return new Color32(r,g,b,a);
     }

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drechter · Dec 23, 2015 at 03:44 PM 1

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Thank you Taylor, this helped me!

ghost_1082 · Mar 22, 2016 at 08:51 PM 2

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This is very similar to what I use. You may want to be careful with your Alpha value - what you want to parse starts at 6, not 4.

Snownova · Mar 22, 2016 at 08:53 PM 2

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Awesome function, I'd just like to point out one tiny typo:

a = byte.Parse(hex.Substring(6,2), System.Globalization.NumberStyles.HexNumber);

clamchoda · May 05, 2017 at 05:17 PM 1

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Threw this one in my utility class right away, thank you :)

Taylor-Libonati · Jun 05, 2017 at 04:28 PM 0

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Thanks ghost and Snownova for catching my mistake! I have updated the post.

Answer 3

Answer by Dev0 · Oct 19, 2014 at 02:25 PM

You can use some bitwise operations like this:

 public Color32 ToColor(int HexVal)
 {
     byte R = (byte)((HexVal >> 16) & 0xFF);
     byte G = (byte)((HexVal >> 8) & 0xFF);
     byte B = (byte)((HexVal) & 0xFF);
     return new Color32(R, G, B, 255);
 }

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Answer 4

Answer by KevinMarais24B · Apr 26, 2017 at 06:10 AM

Classy extension method on Color

    public static string ToHex(this Color color)
     {
         Color32 c = color;
         var hex = string.Format("{0:X2}{1:X2}{2:X2}{3:X2}", c.r, c.g, c.b, c.a);
         return hex;
     }

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Answer 5

Answer by sellverful · Mar 29 at 10:52 AM

As this is the first link that pops up, I thought I can provide much easier answer.

Unity has a built-in Utility for this:

https://docs.unity3d.com/ScriptReference/ColorUtility.html

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Convert Hex (int) to Color/Color32?

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