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cmasher:seaweed#

The seaweed colormap is a visual representation of the type of sea algae with the same name.

collection category license authors source
cmasher Diverging BSD-3-Clause Ellert van der Velden https://github.com/1313e/CMasher
from cmap import Colormap

cm = Colormap("cmasher:seaweed")  # case insensitive
import matplotlib.pyplot as plt
from cmap import Colormap

plt.imshow(data, cmap=Colormap("cmasher:seaweed").to_mpl())
import plotly.express as px
from cmap import Colormap

px.imshow(data, color_continuous_scale=Colormap("cmasher:seaweed").to_plotly())
import napari
from cmap import Colormap

napari.imshow(data, colormap=Colormap("cmasher:seaweed").to_napari())
napari.run()
background: #91F1FB;
background: linear-gradient(90deg, #91F1FB 0%, #7CDEF2 3.22581%, #6ACCE9 6.45161%, #5ABAE1 9.67742%, #4FA8D8 12.9032%, #4996CE 16.129%, #4984C0 19.3548%, #4A73AD 22.5806%, #486397 25.8065%, #43547F 29.0323%, #3C4668 32.2581%, #323952 35.4839%, #282B3D 38.7097%, #1C1E29 41.9355%, #0F0F15 45.1613%, #020203 48.3871%, #020201 51.6129%, #0F1009 54.8387%, #1A2013 58.0645%, #24301C 61.2903%, #2B4024 64.5161%, #314F2C 67.7419%, #346033 70.9677%, #36703A 74.1935%, #36813F 77.4194%, #339343 80.6452%, #2FA545 83.871%, #2EB844 87.0968%, #3ACA3E 90.3226%, #55DB35 93.5484%, #75EC2A 96.7742%, #97FC1A 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("cmasher:seaweed").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("cmasher:seaweed").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("cmasher:seaweed").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("cmasher:seaweed").to_pygfx()
    ),
)
gfx.show(image)
import pyqtgraph as pg
from cmap import Colormap

view = pg.image(data)
view.setColorMap(Colormap("cmasher:seaweed").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("cmasher:seaweed").to_gee()
)

See also usage with external libraries.

cmasher:seaweedcmasher:seaweed colormap
cmasher:seaweedcmasher:seaweed colormap

Perceptual lightness#

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

RGB components#

Hue & saturation#