Cobalt Blue Software Service Promo Email

This is a software service promotion email template built around a cobalt blue and sky blue geometric style, great for software package introductions, free trial invitations, service plan showcases, and B2B marketing communications. The template uses a 600px email canvas, with an eyebrow, main title, and subtitle at the top to establish a clear reading entry point. The middle body area supports Markdown HTML, while the bottom sequentially places the closing greeting, signature, and external link button. Product display supports a single-column layout for the main product and a two-column desktop layout for secondary products that stacks vertically on mobile. Long body content maintains visual continuity through vertical extension of the main background. The overall color palette of cobalt blue, sky blue, white, and deep blue is professional and stable, helping drive efficient conversions.