private void kbtnConvert_Click(object sender, EventArgs e)
        {
            try
            {
                int[] rgb = ConversionMethods.ConvertHexadecimalToRGBTest(ktxtHexColourValue.Text);

                pnlPreview.BackColor = Color.FromArgb(rgb[0], rgb[1], rgb[2]);
            }
            catch (Exception)
            {
            }

            //UpdateUI();
        }