I compiled one between that which was published in "Stage Lighting Revealed" by Cunningham, the Lee color conversion chart once available and other sources. (If it's any help) Looks better as a table but such is life. Note also while Rx 27 is the same as Lee 27, other colors are unique and thus the difference in brand. Or was it all a Gam conversion chart?
Lux Gam E Gam G Gam F Lee Notes
00 1505Gam E 130Lee
01
02 340Gam E 162Lee GAM = Slightly Yellower, Less Pink (Lee)
325Gam E 152Lee
03 325Gam F GAM = lighter (Lux)
D-305Gam E 176Lee
04 305Gam F GAM = pinker (Lux)
04 325Gam F GAM = slightly lighter (Lux)
305Gam E 151Lee GAM = Pinch Bluer (Lee)
05 305Gam G 154Lee GAM = More Saturated (Lux) Pinker (Lee)
06 510Gam E 159Lee
07 D-510Gam E D = Double Gels
08 365Gam G GAM = Warmer (Lux)
09 385Gam E
385Gam F 103Lee GAM = Warmer, Deeper (Lee)
10 480Gam G 101Lee GAM = Less Green (Lux) Less Saturated, Less Orange (Lee)
11 450Gam E
12 480Gam E
312 450Gam G
13 420Gam F 104Lee GAM = More Saturated (Lux) Less Yellow (Lee)
14 420Gam G 102Lee GAM = Slightly Deeper (Lee)
15 D-420Gam G D = Double
16 D-385Gam G D = Double
17 343Gam G
18 375Gam E 147Lee GAM = Pinch yellower, but Excellent Match (Lee)
19 280Gam E
20
21 350Gam E 105Lee
321
22 290Gam E 135Lee GAM = Slightly More Orange (Lee)
23 345Gam E
345Gam G 158Lee GAM = Slightly Less Yellow (Lee)
24
25 270Gam E
270Gam G 164Lee GAM = Slightly Darker, More Saturated (Lee)
26 245Gam E 106Lee GAM = Cleaner, Slightly Less Blue (Lee)
245Gam G 182Lee GAM = Good Match, But Slightly Bluer (Lee)
270Gam G 182Lee GAM = Good match, But More Orange (Lee)
27 250Gam G 27Lee
30 320Gam G GAM = Slightly More Saturated (Lux)
30 260Gam G 176Lee GAM = Pinker (Lux) Slightly More Red, Slightly Less Yellow (Lee)
31 195Gam G GAM = Lighter (Lux)
195Gam E 107Lee
195Gam E 109Lee GAM = Slightly Deeper (Lee)
D-195Gam E 157Lee D = Double
260Gam G 193Lee GAM = Lighter, Excellent if Doubled (Lee)
260Gam F 157Lee GAM = Lighter, More Yellow (Lee)
195Gam F 153Lee GAM = Darker, More Saturated (Lee)
31 190Gam G GAM = Cooler (Lux)
32
33 160Gam E
170Gam G 192Lee GAM = Lighter (Lee)
170Gam F 111Lee GAM = Warmer, Lighter (Lee)
130Gam F 111Lee GAM = Cooler (Lee)
34 190Gam E
35 155Gam E
D-155Gam E 110Lee
36 190Gam G GAM = Warmer (Lux)
37 105Gam E
337 105Gam F GAM = More Violet (Lux)
38
339 140Gam G GAM = Bluer (Lux)
339 120Gam G 128Lee GAM = Lighter (Lux) Lighter (Lee)
40 320Gam G GAM = Lighter (Lux)
41 280Gam E
220Gam E 148Lee GAM = Cleaner, More Saturated (Lee)
220Gam F 113Lee GAM = Pinker (Lee)
235Gam F 113Lee GAM = Redder (Lee)
42 235Gam G GAM = Lighter (Lux)
44 130Gam G GAM = Lighter (Lux)
45
46
47
48
49 995Gam E 126Lee GAM = Slightly Lighter and Bluer (Lee)
50
51 980Gam E
52 970Gam G 136Lee GAM = Less Saturated (Lux) Slightly Darker (Lee)
53 920Gam E
54 970Gam G GAM = Warmer & More Saturated (Lux)
54 980Gam G GAM = Slightly Warmer (Lux)
55
56 948Gam E
356 960Gam E
960Gam F 194Lee GAM = Lighter (Lee)
940Gam G 137Lee GAM = Slightly Darker and Warmer (Lee)
57 940Gam F 142Lee GAM = Cooler (Lux) Redder, Less Saturated (Lee)
58 950Gam E
358
59 930Gam G 181Lee GAM = Bluer & Less Red (Lux) Lighter (Lee)
60 820Gam G GAM = Slightly Greener (Lux)
61 830Gam E
62 790Gam G GAM = More Saturated (Lux)
63 820Gam E
840Gam G 174Lee GAM = Slightly Greener (Lee)
882Gam G 174Lee GAM = Slightly Redder (Lee)
64 847Gam G GAM = Slightly Redder (Lux)
847Gam F 161Lee GAM = Redder (Lee)
850Gam G 119Lee GAM = Lighter (Lee)
890Gam G 119Lee GAM = Redder (Lee)
815Gam E 196Lee GAM = Slightly Redder (Lee)
65 815Gam G GAM = Slightly Redder (Lux)
815Gam F 161Lee GAM = Greener (Lee)
810Gam G 165Lee GAM = Greener (Lee)
66 720Gam E
D-720Gam G 117Lee
67 815Gam G GAM = Slightly Redder (Lux)
68 835Gam E 132Lee GAM = Slightly Warmer (Lee)
69 810Gam F 141Lee GAM = Less Green (Lux) Less Green (Lee)
740Gam F 141Lee GAM = Lighter, Less Saturated (Lee)
740Gam F 144Lee GAM = Slightly Redder, More Saturated (Lee)
740Gam F 183Lee GAM = Lighter, Greener (Lee)
750Gam F 183Lee GAM = Less Saturated (Lee)
70 780Gam G
71 760Gam E
760Gam F 143Lee GAM = Lighter, Greener (Lee)
D-780Gam F 143Lee
72 770Gam G
73 725Gam F GAM = Cleaner and Lighter (Lux)
740Gam E 118Lee
74 890Gam G 195Lee GAM = Redder (Lux)
76
77
78 910Gam F 197Lee GAM = Redder (Lux) Lighter, Redder (Lee)
79 845Gam E GAM = Slightly Less Green (Lux)
80 835Gam F GAM = Greener (Lux)
80 845Gam F GAM = Redder (Lux)
81
82 915Gam G GAM = Slightly More Saturated (Lux)
83 850Gam G GAM = Slightly Less Red (Lux)
383 915Gam G GAM = Lighter, Slightly Less Red (Lux)
84
85 905Gam G 120Lee GAM = Redder (Lux) Slightly Lighter and Redder (Lee)
385 925Gam G GAM = Cleaner & Slightly Lighter (Lux)
570Gam E 121Lee
86 570Gam G GAM = Slightly Less Green (Lux)
87 520Gam F GAM = More Green (Lux)
540Gam G 138Lee GAM = Lighter, Less Saturated (Lee)
87 540Gam F GAM = Less Green (Lux)
88 520Gam F GAM = Slightly Less Green (Lux)
88 540Gam F GAM = More Green (Lux)
388 540Gam F GAM = Less Yellow (Lux)
660Gam G 122Lee GAM = Slightly Lighter and Redder (Lee)
D-660Gam F 124Lee GAM = Warmer (Lee)
655Gam E 139Lee GAM = Slightly Less Saturated (Lee)
90 655Gam G GAM = Slightly Lighter (Lux)
91 650Gam E GAM = Cleaner & Slightly Warmer (Lux)
92 680Gam G GAM = More Saturated & Slightly Bluer (Lux)
93
94
690Gam F 115Lee GAM = Greener (Lee)
690Gam F 116Lee GAM = Lighter, Greener (Lee)
95 D-690Gam G D = Double
96
97 1515Gam F GAM = Lighter (Lux)
97 1516Gam F GAM = Darker (Lux)
98 1516Gam F GAM = Lighter & Cleaner (Lux)
99 330Gam E
330Gam F 156Lee GAM = Lighter, Cooler (Lee)
335Gam G 134Lee GAM = Brighter, More Orange (Lee)
184-191 “Cosmetics” - No Matches (Lee)
E = Excellent Match G = Good Match F = Fair Match