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colorcet:CET_R3#

Aliases: colorcet:r03, colorcet:r3, colorcet:diverging_rainbow_bgymr_45_85_c67_n256, colorcet:rainbow3

Diverging-rainbow colourmap. Yellow is the central reference colour. The blue and red end points are matched in lightness and chroma

collection category license authors source
colorcet Miscellaneous CC-BY-4.0 Peter Kovesi https://colorcet.com 
from cmap import Colormap

cm = Colormap("colorcet:CET_R3")  # case insensitive

import matplotlib.pyplot as plt
from cmap import Colormap

plt.imshow(data, cmap=Colormap("colorcet:CET_R3").to_mpl())

import plotly.express as px
from cmap import Colormap

px.imshow(data, color_continuous_scale=Colormap("colorcet:CET_R3").to_plotly())

import napari
from cmap import Colormap

napari.imshow(data, colormap=Colormap("colorcet:CET_R3").to_napari())
napari.run()

background: #085CF8;
background: linear-gradient(90deg, #085CF8 0%, #1D6ED9 3.22581%, #157EBA 6.45161%, #1C8A99 9.67742%, #339475 12.9032%, #3B9D4F 16.129%, #41A62D 19.3548%, #56AC1F 22.5806%, #6CB01D 25.8065%, #80B51B 29.0323%, #93BA1A 32.2581%, #A6BE17 35.4839%, #B8C315 38.7097%, #C9C712 41.9355%, #DBCB0E 45.1613%, #ECCE12 48.3871%, #F8C92B 51.6129%, #FCBE43 54.8387%, #FDB256 58.0645%, #FEA665 61.2903%, #FF9973 64.5161%, #FE8C80 67.7419%, #FE7E8C 70.9677%, #FD6F98 74.1935%, #FB5FA4 77.4194%, #F94EA7 80.6452%, #F64296 83.871%, #F2387B 87.0968%, #ED2E5F 90.3226%, #E62344 93.5484%, #DF1727 96.7742%, #D70500 100%);

import altair as alt
from cmap import Colormap

# df: a DataFrame with columns x, y and value
alt.Chart(df).mark_rect().encode(
    x="x:O",
    y="y:O",
    color=alt.Color(
        "value:Q", scale=alt.Scale(range=Colormap("colorcet:CET_R3").to_altair())
    ),
)

from bokeh.plotting import figure, show
from cmap import Colormap

p = figure()
p.image(
    image=[data], x=0, y=0, dw=1, dh=1,
    color_mapper=Colormap("colorcet:CET_R3").to_bokeh(),
)
show(p)

from vispy import app, scene
from cmap import Colormap

canvas = scene.SceneCanvas(show=True)
view = canvas.central_widget.add_view()
scene.visuals.Image(data, cmap=Colormap("colorcet:CET_R3").to_vispy(), parent=view.scene)
view.camera = scene.PanZoomCamera(aspect=1)
view.camera.set_range()
app.run()

import pygfx as gfx
from cmap import Colormap

image = gfx.Image(
    gfx.Geometry(grid=gfx.Texture(data, dim=2)),
    gfx.ImageBasicMaterial(
        clim=(data.min(), data.max()), map=Colormap("colorcet:CET_R3").to_pygfx()
    ),
)
gfx.show(image)

import pyqtgraph as pg
from cmap import Colormap

view = pg.image(data)
view.setColorMap(Colormap("colorcet:CET_R3").to_pyqtgraph())
pg.exec()

import ee
from cmap import Colormap

ee.Initialize(project="my-project")  # your Google Cloud project
elevation = ee.Image("CGIAR/SRTM90_V4")
image = elevation.visualize(
    min=0, max=3000, palette=Colormap("colorcet:CET_R3").to_gee()
)

See also usage with external libraries.

colorcet:CET_R3colorcet:CET_R3 colormap
colorcet:CET_R3colorcet:CET_R3 colormap

Perceptual lightness#

Lightness (J′) measured in CAM02 Uniform Color Space (CAM02-UCS)

RGB components#

Hue & saturation#