茶色系の明るさを比較してみました
https://www.colorhexa.com/964b00.png
https://www.colorhexa.com/654321.png
https://www.colorhexa.com/7b3f00.png
https://www.colorhexa.com/602d1d.png
https://www.colorhexa.com/52372f.png
https://www.colorhexa.com/3d241f.png
https://www.colorhexa.com/6f4e37.png
https://www.colorhexa.com/a67b5b.png
https://www.colorhexa.com/4b3621.png
BBR-MD5:CoPiPe-69dcd63d8900442ce344229e08687963(NEW)
BBS_COPIPE=Lv:0
PID: 65503
[0.101869 sec.]
This is Original