Jetpack Compose Color get Hex

To get the hexadecimal color value of a color in Jetpack Compose using the Kotlin language, you can follow these steps:

1. Define the color: Start by defining the color using the Color class in Jetpack Compose. For example, you can define a red color using the Color.Red constant.

val redColor = Color.Red

1. Convert the color to RGB: Use the toArgb() function to convert the color to its RGB representation. This function returns the color value as an integer in the form of ARGB (Alpha, Red, Green, Blue).

val argbColor = redColor.toArgb()

1. Extract the RGB value: Extract the RGB value from the ARGB color representation. You can do this by bitwise AND operation with hexadecimal masks. To extract the red, green, and blue values, apply the masks 0xFF0000, 0x00FF00, and 0x0000FF, respectively.

val red = (argbColor and 0xFF0000) shr 16
val green = (argbColor and 0x00FF00) shr 8
val blue = argbColor and 0x0000FF

1. Convert RGB to hexadecimal: Convert the extracted red, green, and blue values to their hexadecimal representation. You can use the Integer.toHexString() function for this purpose.

val hexColor = "#" +
    red.toString(16).padStart(2, '0') +
    green.toString(16).padStart(2, '0') +
    blue.toString(16).padStart(2, '0')

1. Retrieve the hexadecimal color value: The hexColor variable now contains the hexadecimal representation of the color. You can use it for further processing or display it as needed.

That's it! By following these steps, you can obtain the hexadecimal color value of a color in Jetpack Compose using the Kotlin language.