Color of the day
Inspired by Hex Clock, color of the day is a way to mapping date to a specific hex color code.
Given a date yyyy-MM-dd, the background color in hex code is #yyMMdd.
The font color in hex code caculated by following formula:
for every number in 'yyMMdd':
font color += (15 - number).toHex()
Take 2022-09-20 as example:
- the background color is
#220920 - the font color is
#ddf6df
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