The oklabfunction for CSS specifies OK lightness and hue (a axis and b axis).
a axis positive values are red and negative values are green. b axis positive values are yellow and negative values are blue. These values are unbounded but should not exceed ±0.5 in practice.
Specifies the percentage using a number followed by a percent sign (%).
<number>
An integer or zero or more decimal digits followed by a dot (.) followed by one or more decimal digits. The first character may be preceded by a sign (- or +). The last character may be succeeded by an exponent (e or E) and an integer.
none
Specifies a missing component.
<alpha-value> =
<number> |
<percentage>
<number>
An integer or zero or more decimal digits followed by a dot (.) followed by one or more decimal digits. The first character may be preceded by a sign (- or +). The last character may be succeeded by an exponent (e or E) and an integer.
<percentage>
Specifies the percentage using a number followed by a percent sign (%).