Hi...
I am submit some alternative color to combine with red in #150 :
Basically color combination of red is grey and black, the alternate is red, green, and blue (triangle) also red, green, blue, yellow, and purple (penta. I am try to make some combination color in red without out of basic color combinations.
#169 with black
#167 and #170 with seafoam
#166 and #165 with blue and light blue
#168 with orange (bright color)
I am still looking any color combinations and I will update as soon as possible.
Thanks and Regards,
Jefry