Observable Framework 1.5.1 GitHub️ 1.8k

Color input

API · Source · The color input specifies an RGB color as a hexadecimal string #rrggbb. The initial value defaults to black (#000000) and can be specified with the value option.

const color = view(Inputs.color({label: "Favorite color", value: "#4682b4"}));
color

The color input is currently strict in regards to input: it does not accept any CSS color string. If you’d like greater flexibility, consider using D3 to parse colors and format them as hexadecimal.

const fill = view(Inputs.color({label: "Fill", value: d3.color("steelblue").formatHex()}));

If you specify the datalist option as an array of hexadecimal color strings, the color picker will show this set of colors for convenient picking. (The user will still be allowed to pick another color, however; if you want to limit the choice to a specific set, then a radio or select input may be more appropriate.)

const stroke = view(Inputs.color({label: "Stroke", datalist: d3.schemeTableau10}));
stroke

The readonly property is not supported for color inputs, but you can use the disabled option to prevent the input value from being changed.

const disabled = view(Inputs.color({label: "Disabled", value: "#f28e2c", disabled: true}));
disabled

Options

Inputs.color(options)

Like Inputs.text, but where type is color. The color value is represented as an RGB hexadecimal string such as #ff00ff. This type of input does not support the following options: placeholder, pattern, spellcheck, autocomplete, autocapitalize, min, max, minlength, maxlength.