Wanna bet? Mission Model FS36307 is Light Sea Grey, the same exact color as Tamiya’s XF-20 Medium Grey.
Scalehobbyist.com: Light Sea Grey Fs36307 by Mission Models Paint
Now Mission Model MEDIUM GREY is in fact different because it is darker and the FS number for that particular Medium Grey is FS35237…
Scalehobbyist.com: Medium Grey Fs35237 by Mission Models Paint
However, Tamiya AS-28 is a lacquer spray paint. Yes, it is labelled as Medium Grey but the actual grey in color is really Medium Grey IJN
Tamiya AS-28 Spray Medium Gray 3 oz Hobby and Model Lacquer Paint #86528 (hobbylinc.com)
Therefore, the Tamiya bottle paint equivilent to AS-28 Medium Grey could be XF-75 IJN Grey (Kure Arsenal)
Scalehobbyist.com: Xf-75 IJN Grey (Kure Arsenal) mini by Tamiya Models and Paints
Then again… IJN Grey goes by many stripes of a Tiger under the Tamiya’s line:
Scalehobbyist.com: LP-12 IJN Gray - Kure Arsenal by Tamiya Models and Paints
Scalehobbyist.com: LP-13 IJN Gray - Sasemo Arsenal by Tamiya Models and Paints
Scalehobbyist.com: LP-14 IJN Gray - Maizuru Arsenal by Tamiya Models and Paints
Scalehobbyist.com: LP-15 IJN Gray - Yokosuka Arsenal by Tamiya Models and Paints
Confused? Sure you are. That’s why I would suggest you to go to this website and download the paint equivilent chart:
www.paint4models.com.
Tamiya instruction guide usually list the FS number next to their color name. Look at the Federal Standard number, not the color name.
Other paint brand colors that’s equivilent to Tamiya’s Medium Grey (FS36307)
Testors Model Master - Light Sea GRey
Humbrol - Light Sea Grey
Life Color - Light Blue Grey I
Gunze/Mr. Color - Light Grey
Pollyscale - Italian WW2 Light Blue Grey
All these colors; despite the different names are equivilent to Tamiya’s XF-20 are listed as FS36307. I always… ALWAYS refer to this chart for equivilent paint colors. Like I said, not all greys are alike by their Federal Standard number. Hope this helps…