About this combination
Combination 139 of 348 in Wada's six-volume 1933 work. A 3-colour grouping of Salvia Blue, Deep Indigo, Neutral Gray, as documented in the original plates.
Historical context
Plate 139 of Wada's 348 anchors Salvia Blue, Deep Indigo and Neutral Gray in the blue family — a 3-colour grouping with a refined, cool character, recorded in Sanzo Wada's 1933 Dictionary of Color Combinations (six volumes; Seigensha Art Publishing 2010 reprint), and in the public domain by age. Its strongest pairing — Deep Indigo on Neutral Gray — reaches a contrast ratio of 9.87:1, clearing the WCAG AAA bar for body text, so it holds up for text-on-colour layouts as well as decorative use.
Studio
Taking Salvia Blue & Deep Indigo +1 off the screen
A hex code is an instruction to a screen, not a colour. Where this palette is going decides what it needs next.
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...onto paper
Start here if the palette gets printed. Screen colour and ink colour are not the same colour, and this is the deck that translates between them.
Listed on Amazon as Pantone GP6102B Color Bridge Guide Set Coated & Uncoated, Multi-Colour
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...onto a screen you can trust
Start here if it stays digital. An uncalibrated monitor is the single most common reason a palette that looked right on your desk looks wrong everywhere else.
Calibrite
ColorChecker Studio spectrophotometer
Listed on Amazon as Calibrite ColorChecker Studio Spectrophotometer for Complete Color Management for Display, Projector, Printer and Scanner Profiling
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...by hand
Start here if you are mixing it. Wada's plates were flat printed colour; gansai pans are the closest everyday medium to them.
Kuretake
Gansai Tambi 36
Listed on Amazon as Kuretake GANSAI TAMBI Watercolor Paint Set 36 Colors
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