Thanks to @lukec11 for the color scheme! This is my alacritty config.

alacritty.yml

# Colors (Tomorrow Night)
colors:
  # Default colors
  primary:
    background: '0x1d1f21'
    foreground: '0xc5c8c6'
  # Colors the cursor will use if `custom_cursor_colors` is true
  cursor:
    text: '0x1d1f21'
    cursor: '0xffffff'
  # Normal colors
  normal:
    black:   '0x1d1f21'
    red:     '0xcc6666'
    green:   '0xb5bd68'
    yellow:  '0xe6c547'
    blue:    '0x81a2be'
    magenta: '0xb294bb'
    cyan:    '0x70c0ba'
    white:   '0x373b41'
  # Bright colors
  bright:
    black:   '0x666666'
    red:     '0xff3334'
    green:   '0x9ec400'
    yellow:  '0xf0c674'
    blue:    '0x81a2be'
    magenta: '0xb77ee0'
    cyan:    '0x54ced6'
    white:   '0x282a2e'

background_opacity: 0.95

font:
 size: 9