Lovecore is an internet aesthetic that romanticizes the visual culture of love, affection, and courtship. It is defined by a soft, sweet, and hyper-feminine visual style that draws heavily from the commercial and nostalgic imagery of Saint Valentine's Day. The aesthetic is characterized by its prominent use of a pink, red, and white color palette and its ubiquitous heart motifs.

Originating on Tumblr in the 2010s, the aesthetic is not about any one specific relationship, but rather celebrates the concept of love itself. It focuses on the gentle, affectionate, and "gushy" aspects of romance, such as crushes and dating rituals, while generally avoiding more mature or heartbreaking themes.

Lovecore emerged as a niche aesthetic on Tumblr in the 2010s and later gained widespread popularity on platforms like TikTok. Its rise was fueled by the platform's culture of curating highly specific visual identities. The aesthetic gained a larger following during the COVID-19 pandemic, as users were drawn to its overwhelmingly positive, cheerful, and escapist themes.

The aesthetic also found particular resonance within the LGBTQ+ community, where it was adopted as a way to celebrate love in all its forms, often outside the confines of heteronormative romance. It provides a visual style for expressing queer love and joy in a soft and positive way.

The visual style of Lovecore is a direct celebration of the commercial iconography of romance. The color palette is strictly limited to shades of pink, red, and white. The single most important motif is the heart, which appears on nearly every object and in every composition. Common imagery includes items stereotypically associated with Valentine's Day, such as bouquets of roses, boxes of chocolate, love letters, and vintage paper Valentine's cards. Other key motifs include cherubs and cupids (often drawn from Rococo art), lipstick prints, and cute animals like swans or kittens. The mood is sweet, sentimental, and unapologetically romantic.

Lovecore fashion translates the aesthetic's sweet and romantic themes into a distinct style of dress. The look is a blend of hyper-feminine styles like Coquette and Japanese Larme Kei with explicit, love-themed details. Garments are almost always in shades of pink, red, or white. Clothing often features heart patterns or heart-shaped cutouts. Key items include slip dresses made from satin and lace, blouses with puffed sleeves, and pleated miniskirts. Accessories are central to the look and include heart-shaped sunglasses, ribbon bows in the hair, and delicate jewelry featuring hearts or cherubs.

The music associated with Lovecore is not a specific genre, but a collection of songs that sonically and lyrically evoke the aesthetic's themes of romance, crushes, and sweet affection. The sound is often dreamy, gentle, and nostalgic, with a strong presence of indie pop, bedroom pop, and classic love songs.