<div class="container d-flex justify-content-center align-items-center plano_fundo vh-100">
  <div class="col-12 col-sm-8 col-md-6">
    <form class="card p-4">
      <div class="form-floating mb-3">
        <input type="email" class="form-control" id="email" placeholder="name@example.com">
        <label for="email">Usuário/E-mail</label>
      </div>
      <div class="form-floating mb-3">
        <input type="password" class="form-control" id="senha" placeholder="Senha">
        <label for="senha">Senha</label>
      </div>
      <div class="form-floating mb-3">
        <input type="password" class="form-control" id="confirmaSenha" placeholder="Confirme a Senha">
        <label for="confirmaSenha">Confirme a Senha</label>
      </div>
      <div class="form-floating mb-3">
        <input type="text" class="form-control" id="telefone" placeholder="Telefone">
        <label for="telefone">Telefone</label>
      </div>
      <div class="form-floating mb-3">
        <input type="text" class="form-control" id="nomeCompleto" placeholder="Nome Completo">
        <label for="nomeCompleto">Nome Completo</label>
      </div>
      <div class="form-floating mb-3">
        <input type="date" class="form-control" id="dataNascimento">
        <label for="dataNascimento">Data de Nascimento</label>
      </div>
      <div class="form-floating mb-3">
        <input type="text" class="form-control" id="cpf" placeholder="CPF">
        <label for="cpf">CPF</label>
      </div>
      <div class="form-floating">
        <input type="text" class="form-control" id="telefoneEmergencia" placeholder="Telefone para Emergência">
        <label for="telefoneEmergencia">Telefone para Emergência</label>
      </div>
      <div class="text-center mt-3">
        <a href="proxima_pagina.html">
          <i class="bi bi-arrow-right-circle-fill" style="font-size: 2rem; color: #007bff;"></i>
        </a>
      </div>
    </form>
  </div>
</div>
Baseando nesse codigo coloque a seguinte cor fundo #E78775