Correct

朱墨

/ zhū mò / 
Strokes

Example

As a Noun

red and black

1
Zhūmò
朱墨
tàoyìn
套印

printed in red and black

2
Zhūmò
朱墨
jiā
加
pī
批

comments/remarks written in red and black with a brush

As a Noun

ink made of cinnabar; cinnabar stick