rgb_to_hex.rs

fn main() {
    println!("{}", rgb_to_hex(171, 205, 239));
    
}

fn rgb_to_hex(r: u8, g: u8, b: u8) -> String {
    let mut hex: String = "".into();
    let rgb_colors: [u8; 3] = [r, g, b];
    
    for color in rgb_colors.iter() {
        hex.push_str( &(format!("{:02x?}", color)) )
    }
    "#".to_owned() + &hex
}