Getting the name of color through Hex Value?

Question

I know how to get the name of predefined colors using hex value but how to to get the name of color while approximating its Hex valueto the closest known color.

Answer 1

Here's some code based on Ian's suggestion. I tested it on a number of color values, seems to work well.

GetApproximateColorName(ColorTranslator.FromHtml(source))

private static readonly IEnumerable<PropertyInfo> _colorProperties = 
            typeof(Color)
            .GetProperties(BindingFlags.Public | BindingFlags.Static)
            .Where(p => p.PropertyType == typeof (Color));

static string GetApproximateColorName(Color color)
{
    int minDistance = int.MaxValue;
    string minColor = Color.Black.Name;

    foreach (var colorProperty in _colorProperties)
    {
        var colorPropertyValue = (Color)colorProperty.GetValue(null, null);
        if (colorPropertyValue.R == color.R
                && colorPropertyValue.G == color.G
                && colorPropertyValue.B == color.B)
        {
            return colorPropertyValue.Name;
        }

        int distance = Math.Abs(colorPropertyValue.R - color.R) +
                        Math.Abs(colorPropertyValue.G - color.G) +
                        Math.Abs(colorPropertyValue.B - color.B);

        if (distance < minDistance)
        {
            minDistance = distance;
            minColor = colorPropertyValue.Name;
        }
    }

    return minColor;
}