Seaweed

Summary

Seaweed is a diverging colormap from cmasher. Two arms meet at a pivot of lightness 0.02, hue sweeps 302° from cyan to green, and order holds under all three colorblind simulations.

Green-brown seaweed diverging.

Perceptual profile (OKLCh)

• Lightness: 0.903 → 0.895 (range 0.878, min 0.025, max 0.903); non-monotonic; midpoint 0.025
• Chroma: min 0.001, max 0.247, mean 0.096
• Hue: 204.2° → 132.9° (span 302.2°), path monotonic-cw; quadrants: cyan, azure, blue, violet, green
• Pivot: t 0.498, lightness 0.025, hue jump 178.5°, smoothness 0.500
• Endpoint temperature: cool → warm
• Perceptual ΔE: total 171.1, mean/step 0.671, max step 1.041, smoothness 0.790, speed 0.671

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 161.0; preserves order: yes
• Deuteranopia: ΔE total 154.1; preserves order: yes
• Tritanopia: ΔE total 155.9; preserves order: yes

Related

• Family: cmasher
• Source: Ellert van der Velden — CMasher (10.21105/joss.02004)
• Similar diverging maps: Fusion, Guppy, Holly, Iceburn, Pride, Prinsenvlag, Redshift, Viola
• All colormaps