Convert RGB to Hex Color using C++

std::snprintf function

#include <iostream>

int main()
{
    int r = 128;
    int g = 96;
    int b = 194;
    char hexColor[8];
    std::snprintf(hexColor, sizeof hexColor, "#%02x%02x%02x", r, g, b);

    std::cout << hexColor;

    return 0;
}

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