Monday, March 4, 2013

TERTIARY COLOUR WHEEL / CLOCK MNEMONIC

The 12-STEP or TERTIARY Colour Wheel is a chart of colours or hues of the visible spectrum that show colour relattionships. It is made up of three primary colors, three secondary colors, and six tertiary colors or intermediate colors. Primary colors (red, blue, and yellow) are colors that can not be mixed by any other colors. Secondary colors (purple, green, and orange) are in theory formed by mixing two primary colors together. Tertiary colors (red-violet, blue-violet, blue-green, yellow-green, yellow-orange, and red-orange) are formed by combining a primary color with an adjacent secondary color.

JOHANNES ITTEN'S 3/6/12 STEP COLOUR WHEEL:
primary / secondary / tertiary  


3 ATTRIBUTES OF COLOUR

Hue is generally defined as a pure source of colour, one of the twelve basic colors on the colour wheel. Knowing the root hue allows one to mix the colour that he or she sees using a basic palette. HUE is measured relative to the colour temperature (relative to warm or cool).

Value is the lightness or darkness of the colour relative to white, black, and grey.

Intensity is the brightness or dullness of a colour, often determined by the amount of white or complement has been mixed with it. It is measured relative to the brightest color wheel hue that is closest to the colour. Often the words chroma and saturation are used interchangeably with intensity.
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BETTY EDWARD'S COLOUR CLOCK

YELLOW @ 12 o'clock
VIOLET @ 6 o'clock

Edwards in her 2004 book COLOR (page 49) advises that it is valuable to consistently think of the 12-step tertiary wheel as the face of the 12-piont clock as a visual mnemonic. She places all the warm colours (yellow through red-violet) on the right-hand side in the daylight hours from 12-noon (yellow) to 5 o'clock (red-violet), and the cool colours of the evening hours (violet through yellow-green) on the left-hand side, from 6 o'clock (violet) to 11 (yellow-green). 

Sunday, February 17, 2013

MOUNTAIN LAYERS & VALUE

Monochromatic Mountains
Three Layers 
acrylic on found object cardboard box bottoms

Sara Burra

Linda Gilarski

Jan Lehde

Sonja Huddleston

Brenda Gordon


Sara Burra: detail below with unpainted (product placement!?) sides



Group Shot

Quick Preliminary Thumbnail Sketches
value studies
pencil on paper
Kari Glass


MUNSELL'S VALUE CHART

VALUE: Value indicates the lightness of a color. The scale of value ranges from 0 for pure black to 10 for pure white. Black, white and the grays (as shown in figure 2) between them are called “neutral colors”. They have no hue. Colors that have a hue are called “chromatic colors.” The value scale applies to chromatic as well as neutral colors. The value scale is illustrated for all neutral colors on the chart labeled Munsell’s Nearly Neutral, included in this book of color.

CHROMA: Chroma is the departure degree of a color from the neutral color of the same value. Colors of low chroma are sometimes called “weak,” while those of high chroma (as shown in figure 3) are said to be “highly saturated,” “strong,” or “vivid.” Imagine mixing a vivid red paint, a little at a time, with a gray paint of the same value.



Friday, February 15, 2013

ART CLASS NOTES: colour scales & composition

11 Feb 2013: Sonja Huddleston, Sara Burr, Jan Lehde, Linda Gilarski

Online Munsell Hue Testhttp://www.colormunki.com/game/huetest_kiosk

5-Step Value Scales: pure saturated hue to white


Thumbnail Sketch:
- scale and size change
- rectangle format: landscape or portrait
- stage format
- golden mean rectangle (composition philosophy aesthetics)
- critical discrimination: rectangle dissection and division
focal points
intersections / tangents / high & low points
symmetry asymmetry
dynamic line / static line
parallel and converging lines
physical vs ghost extension lines
- value gradation and variations
- cross hatching with a pencil on paper


Colour Sphere youtube: http://www.youtube.com/watch?v=FCW0yWjt5lM

Colour Terminology
Hue (temperature) / value (light to dark) / intensity (saturation) or chromatic purity
Munsell Value Scale 0=black / 5=middle grey / 10=white
visual spectrum (infra red to ultra violet)
Primary Colour Wheel (3-hue wheel): Red (R) / Yellow (Y) / Blue (B)
Secondary Colour Wheel (6-hue wheel): Primaries + Orange (RY) / Green (YB) / Violet (BR)
Tertiary Colour Wheel (12-hue wheel)
Quaternary Colour Wheel (24-hue wheel)
Quinary Colour Wheel (48-hue wheel)
Complimentary Colour Harmonies
Analogous Colour Harmonies
Triadic Harmonies
Split Complimentary
Additive Colour Wheel (for mixing light)
Subtractive Colour Wheel (for mixing pigments and paint)
Colour Interaction (see Josef Albers)

Colour Guru's
Josef Albers: The Interaction of Color
Chevreul: 
Phillip Runge's colour sphere 1810


INTERACTION OF COLOR
by Josef Albers



Munsell's links to his 10 principal-hue Colour Theory
Munsell gradated colour scale fun game / test http://www.colormunki.com/game/huetest_kiosk 

Photo Research: mountain layers

Photo Research: mountain layers / water




Research: mountain layers / mist & clouds / water


Harmonic Colour Comparisons

PURPLE POWER SHOE 2012
paint swatch painting
15" x  15"
Kari Glass

Marsden Hartley

SIMPLE MAN (modern dance) : Lighting Design 2005
emotional response & colour reaction collage
Kari Glass

Marsden Hartley detail

Mark Rothco

VIOLET AND WEAK ORANGE c. 2005
colour harmony collage w/ National Geographic Magazines
Kari Glass

PURPLE POWER SHOE detail 2012
paint swatch painting
15" x  15"
Kari Glass


Paint Swatch Colour ID / Matching