All colors are good but especially blue.

I love these pens, the color is so rich & bright

I love these pens, the color is so rich & bright

These have a very smooth ink delivery and a beautiful rich blue color with no-smear

The color is really nice and dark blue

Love the vibrant ink color, smooth lines, great pen.

love the blue color, love the flow and feed of ink at any speed, best pen ever for sub super expensive pens i have ever used.

Nice color and works well for someone in Accounting

Vibrant colors

I have ordered it in every color available and at great pricing on Amazon

They write so smoothly and the colors are wonderful.

Writing is a breeze, beautiful color

Gorgeous blue color.