Nice system. Mine is similar, but more strict and simple with 5 digits per person if I add my color to it.
Example: Kim K.Pink (Kim Kardashian on pink/pink skin) = 76376
The colors assigned to the numbers sound like the numbers themselves. Seame vowel sound.
0. Zero – [ziroʊ] the [oʊ] sound sounds like 0. Alternate: None. Color Yellow
1. One – [wʌn] the [ʌ] sound sounds like 1. Alternate: [aʊ] as in House. Color: Russet Brown
2. Two – [tu] the [u] sound sounds like 2. Alternate: [ʊ] Wood [ju] You or [jʊ] Europe. Color: Blue
3. Three – [θri] the [i] sound sounds like 3 which is a long E vowel sound. Alternate: None. Color Green.
4. Four – [fɔr] the [ɔ] sound sounds like 4. Alternate: [ɑ/ɒ] as in Pot or [ɝː] Earth. Color: Purple or Orange
5. Five – [faɪv] the [aɪ] sound sounds like 5. Alternate: None. Color: White
6. Six – [sɪks] the [ɪ] sound sounds like 6. Alternate: [ɔɪ] as in Boy. Color: Pink
7. Seven – [sevən̩] the [e] sound sounds like 7. Alternate: None. Color: Red
8. Eight – [eɪt] the [eɪ] sound sounds like 8. Alternate: None. Color: Gray
9. Nine – [naɪn] the [aɪ] sound has been taken by 5, so I used the alternate sound [æ] as in Mat. Color: Black
That was how I picked my sounds and colors for the numbers above.
My system is very simple if you like phonetics and 90% of my images are celelbrities mostly musicians. So, it’s very easy to memorize. All you have to do is watch their videos on YouTube or listen to their songs, but there is no need for that.
Note: My 0-9 or 00-99 doesnt use sound. Just the consonants are assigned numbers and all the consonants in the English language are used.
Example of my 0-9 system.
0: Siya (si) is an American female rapper and she’s my #0
1: T.I. (ti) is an American rapper and he’s my #1
2: Ne-Yo (ni) is an American singer and he’s my #2
3: M.I (mi) is a Nigerian rapper and he’s my #3
4: Riya (ri) is a Japanese singer and she’s my #4
5: Lia (li) is a Japanese singer and she’s my #5
6: Joe (jo) is American singer and he’s my #6
7: Kay (k) is a Canadian singer and she’s my #7
8: Faye (fay) is a Swedish singer and she’s my #8
9: BoA (bo) is a Soutth Korean singer and she’s my #9
And do so…