Colorscales in JavaScript

How to set colorscales and heatmap colorscales in D3.js-based JavaScript charts in Plotly.js. Divergent, sequential, and qualitative colorscales.

New to Plotly?

Plotly is a free and open-source graphing library for JavaScript. We recommend you read our Getting Started guide for the latest installation or upgrade instructions, then move on to our Plotly Fundamentals tutorials or dive straight in to some Basic Charts tutorials.

Custom Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
  colorscale: [
    ['0.0', 'rgb(165,0,38)'],
    ['0.111111111111', 'rgb(215,48,39)'],
    ['0.222222222222', 'rgb(244,109,67)'],
    ['0.333333333333', 'rgb(253,174,97)'],
    ['0.444444444444', 'rgb(254,224,144)'],
    ['0.555555555556', 'rgb(224,243,248)'],
    ['0.666666666667', 'rgb(171,217,233)'],
    ['0.777777777778', 'rgb(116,173,209)'],
    ['0.888888888889', 'rgb(69,117,180)'],
    ['1.0', 'rgb(49,54,149)']
  ],
  type: 'heatmap'
}];
Plotly.newPlot('myDiv', data);
   });

YlOrRd Heatmap

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
    colorscale: 'YlOrRd',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'YlOrRd'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

YlGnBu Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
    z: figure.z,
    colorscale: 'YlGnBu',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'YlGnBu'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

RdBu Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
    colorscale: 'RdBu',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'RdBu'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

Portland Heatmap

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
  colorscale: 'Portland',
  type: 'heatmap'
 }
];
var layout = {
  title: {
      text: 'Portland'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

Picnic Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
    z: figure.z,
    colorscale: 'Picnic',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'Picnic'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

Jet Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
    z: figure.z,
    colorscale: 'Jet',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'Jet'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

Hot Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
  colorscale: 'Hot',
  type: 'heatmap'
}];
Plotly.newPlot('myDiv', data);
   });

Greys Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
    z: figure.z,
    colorscale: 'Greys',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'Greys'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

Greens Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
    z: figure.z,
    colorscale: 'Greens',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'Greens'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

Electric Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
  colorscale: 'Electric',
  type: 'heatmap'
}];
Plotly.newPlot('myDiv', data);
   });

Earth Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
  colorscale: 'Earth',
  type: 'heatmap'
}];
Plotly.newPlot('myDiv', data);
   });

Bluered Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
  z: figure.z,
  colorscale: 'Bluered',
  type: 'heatmap'
}];
Plotly.newPlot('myDiv', data);
   });

Blackbody Colorscale

d3.json('https://raw.githubusercontent.com/plotly/datasets/master/custom_heatmap_colorscale.json', function(figure) {
var data = [{
    z: figure.z,
    colorscale: 'Blackbody',
    type: 'heatmap'
  }
];
var layout = {
  title: {
      text: 'Blackbody'
  }
};
Plotly.newPlot('myDiv', data, layout);
});

Colorscale for Contour Plot

var data = [ {
  z: [[10, 10.625, 12.5, 15.625, 20],
       [5.625, 6.25, 8.125, 11.25, 15.625],
       [2.5, 3.125, 5., 8.125, 12.5],
       [0.625, 1.25, 3.125, 6.25, 10.625],
       [0, 0.625, 2.5, 5.625, 10]],
  type: 'contour',
  colorscale: 'Jet'
}
];

var layout = {
  title: {
    text: 'Colorscale for Contour Plot'
  }
};

Plotly.newPlot('myDiv', data, layout);

Custom Colorscale for Contour Plot

var data = [ {
  z: [[10, 10.625, 12.5, 15.625, 20],
       [5.625, 6.25, 8.125, 11.25, 15.625],
       [2.5, 3.125, 5., 8.125, 12.5],
       [0.625, 1.25, 3.125, 6.25, 10.625],
       [0, 0.625, 2.5, 5.625, 10]],
  type: 'contour',
  colorscale: [[0, 'rgb(166,206,227)'], [0.25, 'rgb(31,120,180)'], [0.45, 'rgb(178,223,138)'], [0.65, 'rgb(51,160,44)'], [0.85, 'rgb(251,154,153)'], [1, 'rgb(227,26,28)']]
}
];

var layout = {
  title: {
    text: 'Custom Contour Plot Colorscale'
  }
};

Plotly.newPlot('myDiv', data, layout);

Custom Discretized Heatmap Colorscale

var data = [
  {
    z: [[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]],
    colorscale: [

// Let first 10% (0.1) of the values have color rgb(0, 0, 0)

        [0, 'rgb(0, 0, 0)'],
        [0.1, 'rgb(0, 0, 0)'],

// Let values between 10-20% of the min and max of z
// have color rgb(20, 20, 20)

        [0.1, 'rgb(20, 20, 20)'],
        [0.2, 'rgb(20, 20, 20)'],

// Values between 20-30% of the min and max of z
//have color rgb(40, 40, 40)

        [0.2, 'rgb(40, 40, 40)'],
        [0.3, 'rgb(40, 40, 40)'],

        [0.3, 'rgb(60, 60, 60)'],
        [0.4, 'rgb(60, 60, 60)'],

        [0.4, 'rgb(80, 80, 80)'],
        [0.5, 'rgb(80, 80, 80)'],

        [0.5, 'rgb(100, 100, 100)'],
        [0.6, 'rgb(100, 100, 100)'],

        [0.6, 'rgb(120, 120, 120)'],
        [0.7, 'rgb(120, 120, 120)'],

        [0.7, 'rgb(140, 140, 140)'],
        [0.8, 'rgb(140, 140, 140)'],

        [0.8, 'rgb(160, 160, 160)'],
        [0.9, 'rgb(160, 160, 160)'],

        [0.9, 'rgb(180, 180, 180)'],
        [1.0, 'rgb(180, 180, 180)']
    ],
    type: 'heatmap',
    colorbar:{
      tickmode: 'linear',
      tick0: 0,
      dtick: 1
    }
  }
];

var layout = {
  title: {
      text: 'CUSTOM DISCRETIZED HEATMAP COLORSCALE'
  }
};

Plotly.newPlot('myDiv', data, layout);