How to Convert colors from Hex to RGB

Question

I have color in the String.xml file like this <color name="ItemColor1">#ffff992b</color> how can i convert is into four variables

float Red;
float Green;
float Blue;
float Alfa;

in Java Code? any one can help

score 18 · Answer 1 · edited Nov 20 '14 at 18:13

18

You could also use the [red, green, blue] function of the Color class:

    int color = getResources().getColor(R.color.youcolor);
    int r = Color.red(color);
    int g = Color.green(color);
    int b = Color.blue(color);

edited Nov 20 '14 at 18:13

Nicholas Ng

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answered May 21 '14 at 20:23

Johann

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ahoff · Accepted Answer · 2019-12-17T12:43:43.870

15

Edit: This was accepted as the answer but have a look at @johann's answer too, it will leave you and those reading your code less confused.

If you want to learn about the underlying representation of colours, you could start here.

Original answer:

getColor() gives you the colour as an ARGB int.

int color = getResources().getColor(R.color.ItemColor1);
float red   = (color >> 16) & 0xFF;
float green = (color >> 8)  & 0xFF;
float blue  = (color)       & 0xFF;
float alpha = (color >> 24) & 0xFF;

edited Dec 17 '19 at 12:43

answered May 15 '12 at 12:10

ahoff

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in blue `(color >> 0)` can be replaced with `(color)` – Saravanabalagi Ramachandran Jan 03 '16 at 12:50

score 4 · Answer 3 · edited May 23 '17 at 11:55

4

Please take a look

How to get RGB value from hexadecimal color code in java

int color = Integer.parseInt(myColorString, 16);
int r = (color >> 16) & 0xFF;
int g = (color >> 8) & 0xFF;
int b = (color >> 0) & 0xFF;

edited May 23 '17 at 11:55

Community

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answered May 15 '12 at 11:58

Dheeresh Singh

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but my color is not string. iam getting the color by using R.color.ItemColor1 so it is int – AnasBakez May 15 '12 at 12:04
int color = getResources().getColor(R.color.white); – Dheeresh Singh May 15 '12 at 12:16

score 1 · Answer 4 · answered Jul 06 '17 at 10:13

Updated with ContextCompat as getColor is Deprecated.

int color = ContextCompat.getColor(mContext, R.color.colorAccent);
float red = (color >> 16) & 0xFF;
float green = (color >> 8) & 0xFF;
float blue = (color) & 0xFF;
float alpha = (color >> 24) & 0xFF;

Hope it will useful.

score 0 · Answer 5 · answered Jul 22 '23 at 23:46

This function converts an color value to an RGBA value. The color value can be in the form of an integer, a string, or an array. The RGBA color value is returned as an array of four floats.

public static float[] toRGBA(int color) {
    float[] rgba = new float[4];
    rgba[0] = (color >> 16) & 0xFF;
    rgba[1] = (color >> 8)  & 0xFF;
    rgba[2] = (color)       & 0xFF;
    rgba[3] = (color >> 24) & 0xFF;
    return rgba;
}

How to Convert colors from Hex to RGB

5 Answers5