Dark matter is matter that doesn’t interact with light or other kinds of radiation, at least not to any degree that we can measure. Thus it is invisible, not just to the eye but to any of our instruments. Its existence is hypothesized because it would explain the discrepancy between the mass of galaxies as calculated by the well-known kinds of matter that can be observed because it interacts with light, and their mass as calculated by their effects on gravity. There must be much more dark matter than ordinary matter if the predictions of relativity are true, and general relativity is a very robust theory.
Dark energy is a hypothesized mechanism to explain the observation that the universe is accelerating at an expanding rate. Dark energy could either come in the form of a energy spread evenly throughout space and time, which can be captured by a so-called “cosmological constant,” or it could be a field that varies in intensity across space and time.
If these hypotheses are correct, dark energy accounts for the majority of the mass-energy of the universe. It would be very thinly spread, so that at any point in the solar system there will be more matter than dark energy, but there is so much near-empty space out there that dark energy still accounts for more of the universe’s constituency if it is uniformly spread out, not just where there is lots of matter, such as in a solar system, but also where there is very little, such as in interstellar space. Following dark energy, there would be dark matter, and then ordinary matter, making up maybe only 5% of the whole universe.