Viridis

Summary

Viridis is a sequential colormap from matplotlib. Lightness rises monotonically from 0.29 to 0.92, hue sweeps 216° from magenta to chartreuse, and order holds under all three colorblind simulations.

matplotlib default sequential colormap. Sourced from matplotlib _cm_listed.py.

Perceptual profile (OKLCh)

• Lightness: 0.285 → 0.918 (range 0.633, min 0.285, max 0.918); monotonic; midpoint 0.593
• Chroma: min 0.082, max 0.194, mean 0.133
• Hue: 318.1° → 102.0° (span 216.1°), path monotonic-ccw; quadrants: magenta, violet, blue, azure, cyan, mint, green, chartreuse
• Endpoint temperature: cool → warm
• Perceptual ΔE: total 120.5, mean/step 0.473, max step 0.581, smoothness 0.851, speed 0.473

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 91.9; preserves order: yes
• Deuteranopia: ΔE total 90.5; preserves order: yes
• Tritanopia: ΔE total 124.6; preserves order: yes

Related

• Family: matplotlib
• Source: Smith & van der Walt 2015 (matplotlib)
• Similar sequential maps: AFM Hot, Bone, BRG, Cividis, Copper, Cubehelix, Gist Earth, Gist NCAR
• All colormaps