A non-profit organization, \"Accessibility First,\" is designing identification cards for its members, many of whom have visual impairments. The organization\'s design team, led by Fatima Al-Sayed, is debating the optimal color scheme for the cards to ensure maximum readability and accessibility. Fatima understands that color contrast is a crucial factor, but she is unsure which color combinations would best meet the needs of visually impaired users. Considering the principles of color contrast and accessibility guidelines, which of the following color combinations for text and background would be MOST suitable for the organization\'s identification cards to maximize readability for all members?