Cobalt vs Atlantic: Compare Two Blue Mirrored Sunglasses

Many fans have worn Randolphs for a lifetime, and others have newly discovered us. Either way, all Randolph fans recognize our blue sunglasses.

Did you know Atlantic Blue Aviators are the most popular style of Randolphs? From Alaska to the Caribbean, these sunglasses have traveled the world.

The Cobalt Blue Collection is our latest polarized blue style, released early summer of 2019. These two lenses, Atlantic Blue and Cobalt Blue, have many similarities but also important differences.

Cobalt Blue Aviator

The Aviator in Cobalt Blue and 23k Gold

Atlantic Blue Aviator

The Aviator in Atlantic Blue and Matte Chrome

Later this summer, look out for more unique colors and entirely NEW frame styles, too!

Atlantic Blue vs Cobalt Blue

Both the Atlantic and Cobalt sunglasses lenses have a stunning blue hue. These lenses are also both mirrored, following a very flashy recent eyewear trend. When wearing either of these sunglasses, you’ll reflect back at the world around you through a multi-layered flash coating for a full-mirrored effect.

However, these two lenses are made with different lens technologies. Atlantic Blue is made with non-polarized SkyForce™, a hypoallergenic lite lens material for a lighter, more comfortable weight and high scratch resistance. The Cobalt Blue lens is made with polarized SkyTec-P™, a mineral glass lens with heavier material and the same feel as a camera lens. Both proprietary lens technologies far exceed the quality of most sunglasses brands, especially those using polycarbonate lenses.

For most, the main difference between these lenses comes down to the shade of blue.

Atlantic Blue

Atlantic Blue Aviator in Matte Chrome

Atlantic Blue offers a very bright and pure blue hue, similar to royal blue or Egyptian blue. The blue in this lens is a rich electric color, and while some royal blues can appear purple, this one is vividly blue. The color truly stands out with a unique, bold hue behind a contemporary reflective-style lens.

Atlantic Blue sunglasses lens | Randolph Engineering

Aviator in Atlantic Blue

The Aviator in Atlantic Blue and Matte Chrome

Atlantic Blue lens in Aviator sunglasses | Randolph Engineering

Cobalt Blue

Concorde in Cobalt Blue lens and 23k Gold Frame

Cobalt Blue captures a more natural and deeper shade of ocean blue. This blue touches on the green spectrum, but is certainly still a blue hue. This sunglasses lens color is similar to some dark shades of azure blue or ultramarine blue and gives a more tropical vibe when compared to the Atlantic Blue because it is engineered with Randolph’s AGX Green lens beneath a blue coating.

Concorde in Cobalt Blue

The Concorde in Cobalt Blue and 23k Gold

Cobalt Blue lens in Concorde aviator sunglasses | Randolph Engineering

Learn about our new Cobalt Blue lens by watching the review below.

Shade Review is the most watched sunglasses review channel on YouTube and has released an objective review on Randolph’s new Cobalt Blue lens.

How to Choose: Cobalt or Atlantic?

If you prefer a more tropical color and mineral glass lens, go for Cobalt Blue. If you prefer a more vibrant color and a Randolph flagship style with lightweight lenses, try Atlantic Blue. The benefits of blue lenses will enhance your viewing pleasure all year long.

For those who care most about a non-polarized vs polarized lens, your choice is simpler. Polarized lenses are best for general purpose sunglasses while pilots tend to wear non-polarized while flying.

Cobalt Blue Lens
Atlantic Blue Lens

More Blue Sunglasses

The Atlantic Blue and Cobalt Blue have many similarities, but they aren’t Randolph’s only two blue sunglasses.

If you need more help, check out our post on how to choose the color of your lens. We offer many shades of blues, greens, grays, browns, pinks and more. We’re always coming out with new lens options for you to update your unique aviator collection.

Do you wear blue Randolphs? Share with by tagging us and using #MyRandolphs for a chance to be featured! Be sure to follow us on Facebook, Instagram, Twitter and Pinterest.


The views and opinions expressed in this article are those of Randolph Engineering and not of individuals or other corporations. Statements are limited to opinions by Randolph Engineering and not endorsements by others.

8 replies on “Cobalt vs Atlantic: Compare Two Blue Mirrored Sunglasses

    • William Norton

      Hi there! At this time our Tortoise Bayonet Temple tips are only available on our 23k Gold Aviator and Concorde style with our Cobalt SkyTec lens, and on our Aviator with Northern Lights SkyForce Air lens in Matte Chrome or 23k Gold. Please sign up to our email newsletter to stay up to date with our newest releases!

  • kigercpa

    I am planning to purchase a pair of RE Aviators and I am trying to decide which lens. Polarized is out so my choices are coming down to glass or poly and one stat that is missing is percentage of sunlight blockage. I lean toward the highest sunlight blockage as when I need shades I need them and I do not mean as a fashion statement. For me it comes down to the Atlantic Blue, The AGX or the American Gray. Any advice before I order would be most appreciated. My primary use is for driving. Thanks.


    • Sarah Fawle

      Hi Mark, this is a great question and we can provide an answer for you. The light blocked for both lenses is 85%. We recommend either AGX or American Gray as these two are the darkest of tints we have available, so you were on the right track! Your decision comes down to a personal choice whether you prefer a de-saturated grey outlook (American Gray) or more of a green tint(AGX). Both are excellent choices and highly popular. We often also recommend brown tint with American Tan. You might enjoy this post where we talk a bit about driving sunglasses:

  • Christopher P. Beyer

    Hello Sarah,

    What is the difference between the Atlantic Blue lens and a model previously known as Blue Flash Mirror, which I believe was model AFS3668?


  • Ian Turpin

    Is it possible to send you a pair of previously purchased RE glasses and have the grey lenses swapped out for Atlantic Blue?
    If so please let me know the cost, plus return shipping to Tampa, Florida. Thanks, Ian.

    • Sarah Fawle

      Hi Ian, this is a great question. Our customer service team will be in touch shortly to talk about your options!


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