The term achromatic colour is identified in base64 scheme by the sequence YWNocm9tYXRpYyBjb2xvdXI=, while the MD5 signature is equal to 59246344f62bb3165d294a42697d97ba. The ASCII encoding of achromatic colour in hexadecimal notation is 616368726f6d6174696320636f6c6f7572.