It's almost subconcious, but here's how it works in my mind:
0 - clear or white
1 - black
2 - light blue
3 - dark blue
4 - green, teal, or brown
5 - maroon, purple, fuchsia, magenta
6 - green or teal
7 - yellow or gold
8 - red, various shades
9 - orange
1950s - every year is fuchsia
1960s - every year is green
1970s - every year is yellow
1980s - every year is red
1990 - white
1991 - yellow, orange, or black
1992 - yellow, orange, and light blue
1993 - gold and black
1994 - gold
1995 - gold
1996 - gold and green
1997 - gold and yellow
1998 - gold, orange, and red
1999 - orange
2000 - faded light blue
2001 - faded light blue
2002 - teal and light blue
2003 - dark blue
2004 - dark green and brown
2005 - fuchsia
2006 - teal and green
2007 - yellow
2008 - red
2009 - orange
2010 - clear
2011 - light blue
2012 - less faded light blue
2013 - yellow and dark blue
2014 - brown
2015 - maroon
2016 - treal
2017 - gold
2018 - gold and some red
2019 - gold and orange
2020 - black and light blue
2021 - stronger blue and some black
2022 - blue
2023 - blue and some black
What do colors and years look like to you?