From: New insights into iron-gall inks through the use of historically accurate reconstructions
Inks based on | L* | a* | b* | Final colour |
---|---|---|---|---|
Gallic acid | 50.54 | − 0.04 | − 1.48 | Dark bluish |
Ellagic acid | 49.89 | − 2.34 | 3.18 | Dark yellowish-green |
Digalloyl glucose | 68.35 | 0.32 | 9.14 | Dark yellow |
Pentagalloyl glucose | 48.09 | 1.16 | − 4.70 | Dark bluish-red |
Tannic acid | 33.53 | 0.92 | − 5.02 | Dark bluish-red |
Braga (1464) | 19.52 | 0.84 | − 3.94 | Very dark bluish-red |
Montpellier (1469–1480) | 24.44 | 1.06 | − 5.61 | Very dark bluish-red |
Córdoba (1474) | 26.70 | 1.00 | − 5.54 | Very dark bluish-red |
Guadalupe (fifteenth centaury) | 19.97 | 1.03 | − 4.80 | Very dark bluish-red |
Madrid (sixteenth to seventeenth centuries) | 27.26 | 1.40 | − 5. 8 0 | Very dark bluish-red |