Question: I was redoing a logo that I did before for a company.

Original Logo:
[![Original Logo](https://i.stack.imgur.com/RkUyF.png)](https://i.stack.imgur.com/RkUyF.png)

New Logo:
[![New Logo](https://i.stack.imgur.com/LrGVP.png)](https://i.stack.imgur.com/LrGVP.png)

Flat Version:
[![Flat Version](https://i.stack.imgur.com/hfZVg.png)](https://i.stack.imgur.com/hfZVg.png)

Dark-Background Version:
[![Dark-Background Version](https://i.imgur.com/toHXgw4.png)](https://i.imgur.com/toHXgw4.png)

As you can see the dark version is not of a single shade of grey, if I make it all white it loses the depth in the logo. Can someone guide me in how to make it a single color(shade), so that the depth is not lost?

Answer: 
Add black strokes to the problematic places. All other can now be white or other light color. If it must stand as well in all dark backgrounds other than black, cut slits instead of the black strokes. Be sure that the strokes or slits are wide enough to be seen as printed or onscreen apps.

[![enter image description here](https://i.stack.imgur.com/GCHFi.jpg)](https://i.stack.imgur.com/GCHFi.jpg)

ADDENDUM: There's also another possiblity:

[![enter image description here](https://i.stack.imgur.com/I1b2V.jpg)](https://i.stack.imgur.com/I1b2V.jpg)

The apparent bendings are different, but easily recognizable. Use this, if you like it.
Try adding a white stroke to each shape in the logo to separate these on the monochrome version. Play with the thickness of the stroke and covert it to outlines when you're done so it scales properly at different sizes.

If the shape is too complex for this to work, try stroking the [reduced version](https://i.stack.imgur.com/hfZVg.png) you showed us. It is good practice to simplify the shape for monochrome when the artwork is too busy.

[![enter image description here](https://i.stack.imgur.com/3cPWL.jpg)](https://i.stack.imgur.com/3cPWL.jpg)