Cool to Warm (Extended)

Summary

Cool to Warm (Extended) is a diverging colormap from paraview. Two arms meet at a pivot of lightness 0.98, hue sweeps 274° from blue to rose, and order holds under all three colorblind simulations.

35-point Moreland extended diverging.

Perceptual profile (OKLCh)

• Lightness: 0.210 → 0.319 (range 0.768, min 0.210, max 0.978); non-monotonic; midpoint 0.970
• Chroma: min 0.009, max 0.164, mean 0.103
• Hue: 264.1° → 354.2° (span 274.1°), path folded; quadrants: blue, azure, cyan, chartreuse, yellow, orange, red, rose
• Pivot: t 0.502, lightness 0.978, hue jump 90.9°, smoothness 0.041
• Endpoint temperature: cool → warm
• Perceptual ΔE: total 200.3, mean/step 0.786, max step 7.291, smoothness 0.303, speed 0.786

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 182.3; preserves order: yes
• Deuteranopia: ΔE total 181.1; preserves order: yes
• Tritanopia: ΔE total 198.9; preserves order: yes

Related

• Family: paraview
• Source: ParaView / VTK — Kitware (presets curated by Moreland, Samsel et al.)
• Similar diverging maps: Blue Orange (div), Cold and Hot, Cool to Warm, ERDC DivHi PurpleGreen, ERDC DivLow IcePeach, ERDC DivLow PurpleGreen, ERDC Icefire (H), ERDC Icefire (L)
• All colormaps