What are the Open Sans CSS Font Weights?


What are the Open Sans CSS Font Weights?

I often want to use different font weights for Open Sans and so am adding them here for quick reference later.

Open Sans

light

font-weight: 300;

regular

font-weight: 400;

semi-bold

font-weight: 600;

bold

font-weight: 700;

extra-bold

font-weight: 800;


About the Author

Jake Lett is a results-driven Detroit based B2B marketing consultant with 15+ years of hands-on experience managing SEO and PPC campaigns across manufacturing, SaaS, and professional services industries. He’s a Certified Google Ads Specialist and HubSpot CMS Developer who has personally managed budgets ranging from $500 to over $10,000/month.

Jake specializes in helping small businesses and solo marketers get more from lean ad budgets—using practical strategies that drive qualified leads, not just traffic. He shares real-world lessons on his blog, YouTube channel, and in his published books on digital marketing.



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