The term dark-coloured is identified in base64 scheme by the sequence ZGFyay1jb2xvdXJlZA==, while the MD5 signature is equal to 5f4f69535378e397b8d4bfdbaa23f1f9. The ASCII encoding of dark-coloured in hexadecimal notation is 6461726b2d636f6c6f75726564.