It 's too dark for us to see anything.

太暗了，我们什么也看不见。

youdao

It's just not the color for you. It's too dark.

这个颜色不怎么适合你。看起来太深了。

I hate 实战 - SpeakingMax英语口语达人

It's too dark to know how far down they go.

CNN: workers

"It's much too dark in this little dive to continue slogging my way through IQ84!"

CNN: How to kill time without your phone

This will allow the virtual display to show things such as weather and other aeroplanes, further increasing the pilot's awareness when it is too foggy or dark to see outside.

ECONOMIST: MONITOR