"En Plein Aire is Painting on Location"
Oil Palette Colors
Real Color Wheel Color Oppositions

Yellow darkens to Brown as in Yellow Ocher and Mars Yellow.

Brown is Dark Yellow, 1999.

2 of 5

2011 Japan made a yellow (in sunlight) to brown (in shadows) car paint.
Also a cyan in sunlight to blue in shadows car paint.

Ultramarine Blue deepens to a neutral shadow color by adding its opposite color Yellow, either a Transparent Indian Yellow Brown/Side 36RCW#1.4 or Yellow already deepened to the Burnt Umber hue.I could have had a full color image if I wanted to make a green by mixing yellow and blue, but I wanted to show just yellow, blue and brown.

Yellow Brown and Blue only.

Transparent yellow is the undertone of brown as with the water color pigments of old; Burnt Beechwood Bark, the organic plants "turmeric" root and "curcuma" root, from India. Indian yellow also comes in brown and lightens to yellow.
Yellow to brown is also stated with the

crystals WAVELLITE and VESUVIANITE and many others.

Today, 7-27-9, We now have 8 transparent yellows,  up from it being relatively unknown when I made this page in 1996.
It is worth using these colour wheel opposites to create interesting shades when painting on location.
In understanding crystal colour origins, we can create shades which look great when use against each other.
This knowledge can be useful whether you're aiming to capture a natural landscape,
or creating an appealing design for a website.
Once you have mastered the basics of colour combinations,
you will find it easy to mix a variety of shades in order to create the effect which require it. Here is a page with a thousand colors and codes all in gamut.

It takes two transparent oppositions to mix neutral or one transparent and one translucent color, two translucent colors, or one transparent and one opaque. Two opaque colors just won't do it.

Top-tone is adding White to the color.
Under-tone is adding clear.
Mass-tone is thick out of the tube.
Transparent is clear like colored glass.
Translucent is floating colloidal compounds of colored elements.
Milk is translucent.
Opaque is dense and light blocking, like a rock.
YYYY = As Yellow as you can get,
MMMM = pure Magenta
MMCC = Ultramarine Blue
CCCC = Thalo Cyan Blue

 Mass Ult. Blue
 Neutral Color
 Mass Burnt Umber
 Mass Burnt Sienna
 Mass Cad. Yellow

26.  MMCC, Blocks French Ultramarine Blue, translucent 36RCW#19.0
 27.  Mussini Ultramarine Light, Translucent, 36RCW#19.2.5

These are the colors to mix to make a neutral dark from Blue and Yellow pigments. Yellow pigments range from yellow ocher to brown ocher.

10.  Old Holland Indian Yellow-Brown Lake Extra,
Transparent, dual-toned, 36RCW#1.0.8
14.  Mussini Burnt Umber, Translucent, 36RCW#1.10.9

WAVELLITE, Al3[PO4]2[OH,F]3.5H2O, H3.5, SG-2.36, orthorhombic crystal system, acicular, like the needles of Rutile suspended in clear crystal, only these needle crystals form a dense rocklike mass.
ALUMINUM, yellow, brown, blue, centering standard, transparent. Aluminum really does it big this time, each needle starts at the center radiating outward, concentrically ringed bands form around the center, each band ending as a cleavage line, twenty or so bands per complete needle crystal. The band itself can change from clear transparent to opaque white while in the center, the second band range is transparent yellow crystal, than brown, than blue. From brown to blue, the crystal can change into an aggregate and lose its crystal properties.


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