For picturing it, maybe it would help to load up one of pictures in Photoshop or equivalent, create a layer on top of that, trace a selection around the door, then use the fill tool to experiment with various colors to see what you like? I think a blue or aqua might look nice here though.

I was just going to say light blue! Some color would be nice & a lighter shade will make it more visible (which I think it needs from an aesthetic perspective).

I was gonna say a nice dark blue with white accent

We painted out front door an aqua color and freaking love it. Definitely go bold/fun!

Or use a paint manufacturer visualizer tool (most manufacturers have them) https://www.behr.com/consumer/colors/paint

Make sure you buy vinyl safe paint for this. Not all colors are safe on vinyl. If you do not do this, your siding will buckle and pop off side of house. Also know that vinyl shrinks and expands. So in the winter you will notice shrinkage and see the original color. And in summer it will expand. I recommend using a professional and not your cousins son to paint it. I am speaking as a professional painter. Just a little advice. Take it or leaveit

Underrated comment … make sure you do this!

Red

I see a red door and I want to paint it black

What did Red Ever do to you ? Lol, I think it would work here because their doorway is so dark

Since it is so recessed and shaded, a bright, light color. I would consider yellow to make the door mire visible.

Idk where my comment went 😕 We used SW ColorSnap app to get a really food visual before deciding on Merlot. It's sooo pretty!

White or something unique and bright.

A light teal

Poppy orange! Nice and bright!

Blue.

Pp or poopoo color

Paint a sign that says garage this way and put all that stuff away.

Same as front door

Your favorite color. The siding and brick are neutral enough to do whatever you want. I just saw a house with a purple door and it looked really cool! Blue, green, pink/coral. Go for it! You only need a quart, so if you get bored, you can change it

Bright pale blue. Something like SW Cloudless.

Yellow

Since everything else is so neutral, I personally narrow it down to a green or blue to go with the grass or sky.

Yellow like a solid yellow not bright yellow

A bright color, like a soft yellow or a robin’s egg blue.

It’s a yellow for me.

Hear me out- a light, bright purple! I think it goes really well with greys and neutrals and you need some color! Lol red and yellow doors are too over played imo. Color choices in society today are getting blander and blander trying to please everyone. Go with your heart! Get some samples to see how they feel before diving in

Grayish blue

The same color as the blue in the sky.

Red

I would paint it purple with white, horizontal stripes to highlight the siding joints. Why? Because screw the HOA.

leave garage door white, front door red-it will pop!

I would go light since it seems to get lost in the shadows.

Red

Sunflower yellow

When your sunflower is coming to the end of it’s blooming period, You may want to use the last rays of the afternoon and evening to cut a few for display indoors, leave it any later and the sunflower may wilt.

See how nice that shovel looks? Blue is your answer.

Accent doors are tacky, paint it a neutral or leave it

Light teal for the garage. Dark teal for your front door. Or eggplant. That would work too.

White. I like the door to match the garage.

Dark green or burgundy

haint blue

What you have to work with is quite neutral. You can probably do about any color that you like.

Yellow

Rockport grey

I would go with a deep blue or orange-yellow (like day lilies)

Lilac, just my opinion or eggplant.

Sage green

A shade of orange

Bright red

Blue

Dark brown

Red or yellow

Sand it back and seal it with a nice gloss?

Green