Citigroup Inc. said it will invest in digital mortgage offerings as part of its pledge to improve homeownership rates among communities of color. The push to digital comes as Citigroup said the rate of applications and originations it processed for Black and Hispanic consumers dropped last year, even as it increased for Asian homeowners. In response, the firm is also still planning to expand its community lending team and its network of correspondent lenders, it said. Citigroup has pledged $100 million to support minority deposit institutions in the U.S., which have seen their numbers dwindling in recent years. The firm’s already allocated almost half of that commitment to banks including Broadway Financial Corp., Mechanics & Farmers Bank and Optus Bank.