How to convert RGBA css color format to hexadecimal format

Question

In my selenium code i need to verify that color code is #192856 for background. but when i get the CSS property of that element it is giving me color in rgba format. Now i need to get values in hex values itself . How can i do that?

quickLinkstab.GetCssValue("background-color")

above is givingm e value of "rgba(25, 40, 86, 1)" which is rgba value. Is there any way i can convert it back to Hex ? or i can get value in Hex itself?

i've also tried below code

 string colorcode = menuColor;
        int argb = Int32.Parse(colorcode.Replace("#", ""), NumberStyles.HexNumber);
        Color clr = Color.FromArgb(argb);


        int r = Convert.ToInt16(clr.R);
        int g = Convert.ToInt16(clr.G);
        int b = Convert.ToInt16(clr.B);
        int a = Convert.ToInt16(clr.A);
        string x = string.Format("rgba({0}, {1}, {2}, {3});", r, g, b,a);

but this one is giving me value like , "rgba(25, 40, 86, 0);" . Difference in "a" value. Like my code gives me 0 for "a" but cssvalue is 1.

I'm more looking towards the solution of getting Hex value directly or if not possible then convert rgba to Hex.

Answer 1

using System.Drawing.ColorTranslator

string htmlColor = ColorTranslator.ToHtml(myColor);

using String.Format

//RGB
String.Format("#{0:X2}{1:X2}{2:X2}", colorValue.R,colorValue.G,colorValue.B);
//RGBA
String.Format("#{0:X2}{1:X2}{2:X2}{3:X2}", colorValue.A,colorValue.R,colorValue.G,colorValue.B);

Extenstion

public static class ColorExtension
{
    public static string HexFormat(this Color colorValue)
    {
        return String.Format("#{0:X2}{1:X2}{2:X2}{3:X2}", colorValue.A, colorValue.R, colorValue.G, colorValue.B);
    }
}