033 Indigo Extra

Old Holland Classic Watercolours

Company
Old Holland (4 products)
Medium
Watercolor
Pigments
Transparency
Transparent
Lab 2D planes
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Sample
Old Holland Classic Watercolours 033 Indigo Extra PB15:3, PR177, PBk9 measurement swatch
watercolor
masstone
Display P3
sRGB
Value scale
Color Atlases
HLC H265_L030_C025
Color Notation (CIE L*a*b*)
L* 27.90 a* -2.65 b* -22.83 D50
L* 27.90 C* 22.99 263.39 D50

Sample
watercolor, masstone
Paper
Hahnemühle Echt Bütten CP 300gsm
Device
Nix Spectro 2
Mode
M2 (light source: Tungsten + UV-cut filter)
CIE-L*a*b*
L* 27.90 a* -2.65 b* -22.83 D50
L* 28.22 a* -2.13 b* -17.15 D65
CIE-L*Ch°(ab)
L* 27.90 C* 22.99 263.39 D50
L* 28.22 C* 17.28 262.90 D65
CIE-V*D*
V*ab 36.15 D*ab 75.68 D50
OK-Lab + Ch°
L 0.3809 a -0.0194 b -0.0632 C 0.0661 252.9420 D65
Munsell
Munsell 3.8PB 2.8/4.9 C
CIECAM02
J 20.1 C 30.7 248.9 s 48.5 Q 135.5 M 31.9 a -11.1 b -28.6 D65
RGB
sRGB: r 40 g 68 b 101 hex #284465
P3: r 0.181 g 0.265 b 0.385
Spectral Curve
Disclaimer
Read about the samples and measurement methodology.
Color Mixes (experimental) 
1:0
3:1
3:2
1:1
2:3
1:3
0:1
Color mixer is an experimental feature using Mixbox: Pigment-Based Color Mixing. (Mixing within the sRGB gamut, assuming the colors were opaque colors.)
Color mixer is an experimental feature using the paints' spectral curves, measured on masstone to predict the mixing path, assuming the paints were opaque.
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035 Scheveningen Blue