Lambert Conformal Conic

The Lambert conformal conic projection is available as d3.geoConicConformal in d3-geo. See also a map of Europe in this projection.

<!DOCTYPE html>
<meta charset="utf-8">
<svg width="960" height="500"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://d3js.org/topojson.v2.min.js"></script>
<script>

var svg = d3.select("svg"),
    width = +svg.attr("width"),
    height = +svg.attr("height");

var projection = d3.geoConicConformal();

var path = d3.geoPath()
    .projection(projection);

svg.append("path")
    .attr("id", "graticule")
    .attr("fill", "none")
    .attr("stroke", "#777")
    .attr("stroke-width", 0.5)
    .attr("stroke-opacity", 0.5)
    .attr("d", path(d3.geoGraticule10()));

svg.append("path")
    .attr("fill", "none")
    .attr("stroke", "#000")
    .attr("d", path({type: "Sphere"}));

d3.json("https://d3js.org/world-50m.v1.json", function(error, world) {
  if (error) throw error;

svg.insert("path", "#graticule")
      .datum(topojson.feature(world, world.objects.land))
      .attr("fill", "#222")
      .attr("d", path);

svg.insert("path", "#graticule")
      .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; }))
      .attr("fill", "none")
      .attr("stroke", "#fff")
      .attr("stroke-width", 0.5)
      .attr("d", path);
});

</script>

https://d3js.org/d3.v4.min.js

https://d3js.org/topojson.v2.min.js