a {
  color: hsl(0, 0%, 0%);
}

b {
  color: hsl(120, 100%, 50%);
}

c {
  color: hsl(360, 100%, 50%);
}

d {
  color: hsl(-314.159, 50%, 50%);
}

e {
  color: hsl(0, 0%, 0%, 0.5);
}

f {
  color: hsl(1, 2, 3);
}

g {
  color: hsl(120 100% 50);
}

h {
  color: hsl(120 100% 50 / 50%);
}

i {
  color: hsl(0.5turn 100 50);
}

j {
  color: hsla(0.5turn 100 50);
}

k {
  color: hsla(calc(0.5turn + 90deg) calc(50% + 50) calc(100 / 2) / calc(1 / 2));
}

l {
  color: hsl(0.5turn, 100%, 50%);
}

m {
  color: hsl(1, 2 3);
}

n {
  color: hsl(1 2 3 4);
}

o {
  color: hsl(1 2 3 /);
}

p {
  color: hsla(1 2 / 3 4);
}

q {
  color: hsla(1, 2 3 / 4);
}