rgb to hex

gistfile1.m

- (NSString *) rgbToHex: (NSColor*) color {
    NSString *hexColor = [NSString stringWithFormat:@"#%02X%02X%02X",
                                                    (int) ([color redComponent] * 0xFF),
                                                    (int) ([color greenComponent] * 0xFF),
                                                    (int) ([color blueComponent] * 0xFF)
    ];
    return hexColor;
}