I got bored and created this RGB > HEX chart for all those who care...

RGB	HEX
0-9	"0" & # value
10-15	"0" & A-F
16-25	10-19
26-31	1A-1F
32-41	20-29
42-47	2A-2F
48-57	30-39
58-63	3A-3F
64-73	40-49
74-79	4A-4F
80-89	50-59
90-95	5A-5F
96-105	60-69
106-111	6A-6F
112-121	70-79
122-127	7A-7F
128-137	80-89
138-143	8A-8F
144-153	90-99
154-159	9A-9F
160-169	A0-A9
170-175	AA-AF
176-185	B0-B9
186-191	BA-BF
192-201	C0-C9
202-207	CA-CF
208-217	D0-D9
218-223	DA-DF
224-233	E0-E9
234-239	EA-EF
240-249	F0-F9
250-255	FA-FF