Sound like you are fairly new and need some help seeing colour tone. Doing some tonal exercises will help. For instance the colour wheel is set up to reflect the tonal values of the hue (colour) -very simply put.
Example Tonal Value for Hue
Lightest tonal value 1 -would be yellow
Mid range tonal value 5 -could be red
Darkest tonal value 9 -could be violet
Start be familiarising yourself with a greyscale. Draw a rectangle and divide into 9 squares. White paint box 1 - Black paint box 9. Mix 50/50 for box 5. Now start from the lightest side, and mix your light grey incraments getting darker towards the centre, continue onto the other side getting more dark towards the darkest value.
Now try it with a single colour hue -maybe red because it is a mid value colour.
Once you understand how to "See" tone, then you can use a tonal vaue finder like mine I created.
See if this link will help -it's a tool I created I use for myself I put on my blog to help others http://artycraftystudio.blogspot.com...ale%20template
Because you now understand tone, you can use the "tonal value finder' to judge which tone your hueis. -Use it as a guid. Still use the 'traditional method' of squinting your eyes.