rgb to hex

~/C/rgbToHex.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main(int argc, char const *argv[])
+{
+    int red = 0;
+    int green = 128;
+    int blue = 64;
+
+    printf("#%.2x%.2x%.2x\n", red, green, blue);
+
+    return 0;
+}