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Chinese color mixing

Objective

Given two Chinese ideographs meaning basic colors, output the ideograph that means the color resulting from mixing them.

Basic colors

The basic colors are:

靑(U+9751; blue)
赤(U+8D64; red)
黃(U+9EC3; yellow)
白(U+767D; white)
黑(U+9ED1; black)

Mixed colors

Mixing 靑(blue) and 赤(red) yields 靘(U+9758; purple).
Mixing 赤(red) and 黃(yellow) yields 熏(U+718F; orange).
Mixing 黃(yellow) and 白(white) yields 硅(U+7845; beige).
Mixing 白(white) and 黑(black) yields 黻(U+9EFB; grey).
Mixing 黑(black) and 靑(blue) yields 黯(U+9EEF; deep blue).
Mixing 靑(blue) and 黃(yellow) yields 綠(U+7DA0; green).
Mixing 黃(yellow) and 黑(black) yields 騮(U+9A2E; brown).
Mixing 黑(black) and 赤(red) yields 紫(U+7D2B; wine red).
Mixing 赤(red) and 白(white) yields 紅(U+7D05; pink).
Mixing 白(white) and 靑(blue) yields 碧(U+78A7; sky blue).

(This scheme of color terms is historical, and it doesn't reflect the modern usage of Chinese.)

To summarize in Unicode points:

9751, 8D64, 9758
8D64, 9EC3, 718F
9EC3, 767D, 7845
767D, 9ED1, 9EFB
9ED1, 9751, 9EEF
9751, 9EC3, 7DA0
9EC3, 9ED1, 9A2E
9ED1, 8D64, 7D2B
8D64, 767D, 7D05
767D, 9751, 78A7

Rules

I/O format is flexible. In particular, I/O in Unicode points is okay, and outputting trailing whitespace is permitted.

Mixing colors is commutative. It is assumed that the two inputted basic colors are different.

In any case, an input not fitting into your format falls in don't care situation.

Examples

Given 靑 and 白, output 碧.
Given 赤 and 白, output 紅.

Answer*

# [05AB1E](https://github.com/Adriandmen/05AB1E/wiki/Commands), 33 [bytes](https://github.com/Adriandmen/05AB1E/wiki/Codepage)

 α90%•MÚöć'wSlé∞‘cP₃$«¢Γå"α•5ô0šsè

I/O as codepoint integers.

Port of [*@SuperStormer*'s Python answer](https://codegolf.stackexchange.com/a/263400/52210).

[Try it online](https://tio.run/##AU0Asv9vc2FiaWX//86xOTAl4oCiTcOaw7bEhyd3U2zDqeKInuKAmGNQ4oKDJMKrwqLOk8OlIs6x4oCiNcO0MMWhc8Oo//8zODczNwozNjE5Ng) or [verify all test cases](https://tio.run/##yy9OTMpM/V9W6WKvpKChZH@4HcjQVHjUNklByT7h/7mNlgaqjxoW@R6edXjbkXb18uCcwysfdcx71DAjOeBRU7PKodWHFp2bfHip0rmNQGWmh7cYHF1YfHjFf5hxy4GmKen8j45Wejl3opKO0outS5RidaLBtI7Sy93NYB6I1lF6PnMvmAeiQXIToXIgfSDdYB7YFFR9qCpRbUAzE2RKLAA).

**Explanation:**



 α # Get the absolute difference of the two (implicit) input codepoint-integers
 90% # Modulo-90
 •MÚöć'wSlé∞‘cP₃$«¢Γå"α•
 '# Push compressed integer 30887320053947029071321603078932043406874069938744
 5ô # Split it into parts of size 5
 0š # Prepend a dummy 0
 s # Swap so the earlier abs(a-b)%90 is at the top of the stack
 è # 0-based modular index it into this list
 # (after which the result is output implicitly)

[See this 05AB1E tip of mine (section *How to compress large integers?*)](https://codegolf.stackexchange.com/a/166851/52210) to understand why `•MÚöć'wSlé∞‘cP₃$«¢Γå"α•` is `30887320053947029071321603078932043406874069938744`.

----------

Since I was curious: using the actual unicode characters would result in an 18-character program, but it would be 40 bytes in UTF-8 encoding:

 α90%" 碧紅騮熏綠硅紫黯黻靘"è

Input as codepoint integers, output as Chinese character.

[Try it online.](https://tio.run/##AT0Awv9vc2FiaWX//86xOTAlIiDnoqfntIXpqK7nho/ntqDnoYXntKvpu6/pu7vpnZgiw6j//zM4NzM3CjM2MTk2)

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