ej adicional

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=<device-width>, initial-scale=1.0">
    <title>Probando JavaScript</title>
</head>
<body>
    <button onclick="modificar('Blue')">Blue</button>
    <button onclick="modificar('Red')">Red</button>
    <button onclick="modificar('Green')">Green</button>
    <button onclick="modificar('Pink')">Pink</button>
    <p id="color"></p>

    <script>
        function modificar(nombre) {
            document.getElementById("color").innerHTML = "El color es " + nombre;
            document.getElementById('color').style.backgroundColor = nombre;
    }


    </script>

</body></html>