Cubehelix Color Picker

100%

Cubehelix Color Picker

✓ Published0🌍 Public

Last edited Jun 8, 2015

Created on Sep 19, 2015

The Cubehelix Color Picker displays three horizontal channels—hue, saturation, and lightness—as gradient strips, each paired with an axis. It uses D3.js to render the axes and SVG structure, while Canvas draws the color gradients. The visualization demonstrates the cubehelix color space by letting viewers compare how each channel varies independently, with the final color resulting from the combination of all three channels.

AI-generated description

Similar vizzes

Loading thumbnail…

Cubehelix Color Picker

This example presents an interactive Cubehelix color picker with three horizontal channel strips for hue, saturation, and lightness. Each strip renders a gradient swatch on a canvas element with an SVG axis below it, using d3.svg.axis to label the value ranges. The code relies on d3-color’s `cubehelix` and `hsl` functions to convert channel values into displayable colors, drawing the gradient bars programmatically via canvas `getImageData`. The interface allows direct manipulation of each channel to explore the three-dimensional color space.

Mmbostock

93% match

Loading thumbnail…

HSL Color Picker

Three horizontal color-gradient strips display the hue, saturation, and lightness channels of an HSL color model. Dragging any strip updates the selected color value, and each strip re-renders to show the resulting color variation. The visualization uses D3.js for axis rendering and drag behavior, while Canvas `putImageData` writes per-pixel RGB values for the gradients.

Mmbostock

85% match

Loading thumbnail…

HCL Color Picker

This example presents an interactive HCL color picker with three horizontal channel strips for hue, chroma, and lightness. Each strip displays a gradient of colors, and the user can drag a marker along any channel to adjust that component, with the current color shown as a white pixel and its predecessor as black. The visualization uses D3 v3 with SVG axes for channel scales and Canvas `createImageData` and `putImageData` to render the per-pixel gradients. The HCL color is converted to RGB via `d3.rgb`, and dragging is handled with `d3.behavior.drag`.

Mmbostock

84% match

Loading thumbnail…

Cubehelix Color Space

A two-dimensional cross section of the Cubehelix color space shows hue from 0° to 360° along the vertical axis and lightness from 1 to 0 along the horizontal, with saturation held constant at 1. The canvas renders these colors by mapping each pixel coordinate to a Cubehelix value and converting it to RGB using the d3-color library. The visualization demonstrates the full gamut of the color space through a continuous gradient.

Mmbostock

83% match

Loading thumbnail…

Cubehelix

This example displays a single horizontal strip of continuously varying colors, demonstrating the default cubehelix color scheme. The gradient runs from one color to another across the canvas width, showing the perceptual characteristics of the ramp. The code defines a custom d3.scale.cubehelix using d3.interpolateCubehelix and applies it via a canvas element. It generates pixel data with createImageData and writes the color values directly into the image buffer, which is then rendered with putImageData.

Mmbostock

81% match

Loading thumbnail…

RGB Color Picker

This interactive RGB color picker displays three horizontal channel strips (red, green, blue) as Canvas gradients, each with a draggable marker. The current color is composed from the selected values in all three channels, shown as a white/black marker line. The visualization uses D3 v3 with `d3.scale.linear`, `d3.interpolateRound`, `d3.svg.axis`, and the `d3.behavior.drag` interaction. Each strip is rendered with `createImageData` and `putImageData` on the Canvas, while SVG axes provide tick labels.

Mmbostock

80% match

Loading thumbnail…

Perceptual Color Picker

This interactive color picker demonstrates the HCL (Hue-Chroma-Luminance) color space for perceptually uniform color selection. Three sliders adjust hue, chroma, and luminance, while gradient canvas backgrounds show how each parameter affects the final color. The interface converts between HCL and hex values bidirectionally, with a preview box and text input for direct hex entry. The visualization uses D3.js v5 for color space conversions and Topologica for reactive data flow, while rendering gradient backgrounds to canvas and checking color gamut validity with D3's displayable method.

CCurran Kelleher

80% match

Loading thumbnail…

Cubehelix Interpolation

This example demonstrates color interpolation in Cubehelix color space by rendering a horizontal gradient across a 960-pixel canvas. The visualization uses d3-color, specifically the `d3.cubehelix` interpolation method, to smoothly transition between colors along the visible spectrum. The single-row canvas is stretched vertically via CSS to create a tall, banded display. The code implements the full d3-color library inline, including color parsing, RGB and HSL conversions, and the Cubehelix interpolation logic, all rendered through the Canvas 2D API without additional libraries.

Mmbostock

80% match