DIDV130 Flashcards
Term: Hue
The term used in art to describe what most people call colour (also called chroma).
Term: Chroma
The term used in art to describe what most people call colour (also called chroma).
Term: Achromatic
The term used when referring to black, grey and white
Term: Primary Colors
Pure colours which cannot be made by combining any other colours: red, yellow & blue.
Term: Secondary Colors
Colours created by mixing two primary colours: orange (red+yellow), green (yellow+blue) and violet (blue+red).
Term: Tertiary Hues
The colours between the primaries and the secondaries. One can produce an infinite number of variations of such tertiary colours.
Term: Analogous Hues
Hues adjacent to each other on the colour wheel. Analogous hues tend to be harmonious and restful when used together in a design. (i.e. orange, red-orange, yellow-orange and yellow).
Term: Complimentary Hues
Are hues opposite each other on the colour wheel
Term: Warm Hues
Colours which seem to advance from the picture surface: red, orange and yellow
Term: Cool Hues
They seem to recede into the picture surface: blue, green and violet.
Term: Split Complementry
Is a hue plus a hue next to its compliment (i.e. red-violet or blue-violet is the split complimentary to yellow).
Term: Monochromatic Hues
Variations of a single colour by value and intensity alone.
Term: Intensity
The brightness or dullness of a colour or hue. Often it is called its chrome. A hue of high intensity is a warm hue and is said to advance from the page. A hue of low intensity is a cool hue and recedes into the page.
Term: Value
The relative lightness or darkness of a colour or hue.
Term: Tint
Is the use of a colour and white, also known as pastels.
Term: Tone
The use of a colour and grey.
Term: Shade
The use of colour and black.
Term: Triad
Three colours spaced equally apart on the colour wheel.
Term: Subjective Colors
They are the intrinsic qualities and preferences that constitute an individual’s colour choice - your personal preference
Additive (RGB) vs Subtractive Color (CMYK)
Additive: Screen based- All digital screens utilize additive color principles with primaries of red, green and blue (RGB)
Subtractive: Print based- CMYK color mode is when each pixel is assigned a percentage value for each process ink.
RGB transmission signals
RGB lights are transmitted through two signals, indicating
1) “chrominance or chromaticity (a combination of dominant wave lengths, or a hue, and purity, or saturation) and
2) luminance (the light mixture equivalent of value in pigments).
CIE Chromaticity
Red , blue and green are used for color on computers because they represent the most wide range of color mixing options. When you see a color on your monitor, you are actually seeing an optical mixture of these 3 primaries. The CIE diagram illustrates the parameters of modern computer graphic color capabilities
RGB Color Mode
Assigns an intensity value to each pixel. In 8 bits per channel images, the intensity values range from 0 (black) to 255 (white) for each of the RGB (red, green, blue) components in a color image.
For example, a bright red color has an R value of 246, a G value of 20, and a B value of 50.
When the values of all three components are equal, the result is a shade of neutral gray.
When the values of all components are 255, the result is pure white; when the values are 0, pure black
CMYK Color mode
In the CMYK mode, each pixel is assigned a percentage value for each of the process inks. The lightest (highlight) colors are assigned small percentages of process ink colors; the darker (shadow) colors higher percentages. For example, a bright red might contain 2% cyan, 93% magenta, 90% yellow, and 0% black. In CMYK images, pure white is generated when all four components have values of 0%
