Font Weight

A font weight as defined in 8.4.

JSON

{
  "font-weight-default": {
    "$type": "fontWeight",
    "$value": 350
  },
  "font-weight-thick": {
    "$type": "fontWeight",
    "$value": "extra-bold"
  }
}

YAML

font-weight-default:
  $type: fontWeight
  $value: 350
font-weight-thick:
  $type: fontWeight
  $value: extra-bold

Property	Type	Description
$type	string	Required. "fontWeight"
$value	number	Required. Either a font weight number 1 (lightest) –999 (heaviest), or an approved alias of a font weight number.
$description	string	(Optional) A description of this token and its intended usage.

Aliases

A font weight can be a number from 1 (lightest) – 999 (heaviest), but the following string keywords may also be used (and only the following words):

Weight	Alias
100	thin, hairline
200	extra-light, ultra-light
300	light
400	normal, regular, book
500	medium
600	semi-bold, demi-bold
700	bold
800	extra-bold, ultra-bold
900	black, heavy
950	extra-black, ultra-black

Notes

• Though this seems similar to a number token, the difference is the string aliases, and the fact that this can only be used for font weights (and typography tokens).

See also

• Font Family is a part of the Typography type