cmasher:ocean#

The ocean colormap is a visual representation of an ocean wave.

collection	category	license	authors	source
cmasher	Sequential	BSD-3-Clause	Ellert van der Velden	https://github.com/1313e/CMasher

cmapmatplotlibplotlynapariCSSMore...

from cmap import Colormap

cm = Colormap("cmasher:ocean")  # case insensitive

import matplotlib.pyplot as plt
from cmap import Colormap

plt.imshow(data, cmap=Colormap("cmasher:ocean").to_mpl())

import plotly.express as px
from cmap import Colormap

px.imshow(data, color_continuous_scale=Colormap("cmasher:ocean").to_plotly())

import napari
from cmap import Colormap

napari.imshow(data, colormap=Colormap("cmasher:ocean").to_napari())
napari.run()

background: #1C0041;
background: linear-gradient(90deg, #1C0041 0%, #200B4A 3.22581%, #231653 6.45161%, #25205C 9.67742%, #262964 12.9032%, #27326C 16.129%, #273B73 19.3548%, #26447A 22.5806%, #254C7F 25.8065%, #255584 29.0323%, #255D89 32.2581%, #26668D 35.4839%, #286E91 38.7097%, #2B7694 41.9355%, #2F7F97 45.1613%, #34879B 48.3871%, #3B8F9E 51.6129%, #4297A1 54.8387%, #4B9FA3 58.0645%, #54A7A6 61.2903%, #5FAFA9 64.5161%, #6CB7AC 67.7419%, #7BBEAF 70.9677%, #8AC4B4 74.1935%, #9ACBBB 77.4194%, #AAD2C2 80.6452%, #B9D8CB 83.871%, #C8DFD5 87.0968%, #D6E7DF 90.3226%, #E4EEE9 93.5484%, #F2F6F4 96.7742%, #FFFFFF 100%);

altairbokehvispypygfxpyqtgraphEarth Engine

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:ocean").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:ocean").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:ocean").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:ocean").to_pygfx()
    ),
)
gfx.show(image)

import pyqtgraph as pg
from cmap import Colormap

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

Perceptual lightness#

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

cmasher:ocean#

Perceptual lightness#

RGB components#

Hue & saturation#