Color

COLOR  Just a sensation produced on eye  Has no physical existence  Based on phenomena of reflection of light

Comparison Of Colour 

For color comparison we first have to measure color.

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So color is measured by three parameters COLOR = HUE + BRIGHTNESS + SATURATION

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These three parameters are used for assessment of color because there are three kinds of receptors in human eye.

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So to compare any two bodies (e.g. Two Dyed Fabrics) with respect to color we have to keep three parameters in mind. •

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Hue, Brightness and Saturation

Now we will define what Hue, Brightness and Saturation actually are;

Hue  Dominant wavelength in reflected light from the object  Identifies a color by name  Every color falls into a definite category of hue i.e. Red, Blue, Green etc.

Brightness Lightness/ darkness of hue achieved by adding white, grey or black

Saturation Refers to degree of purity of color

Purity of a color refers to its freedom from white, black or grey. PURE COLOR + WHITE --------------------- LESS PURE COLOUR PURE COLOR + BLACK ---------------------LESS PURE COLOUR PURE COLOR + GREY ---------------------- LESS PURE COLOUR

Modification Of Colour As we already know that there are three parameters of color so color can be modified by changing any of the parameter such as hue, chroma, and value. Three ways to modify a color 1. Mixing with another color ----- hue change

Mixing a color with another produces a change in Hue YELLOW + BLUE = GREEN 2. Mixing with white

Produces a tint COLOUR + WHITE = TINT 3. Mixing with black

Produces a Shade COLOUR + BLACK = SHADE The amount of additional color/ black/ white determines the degree of change of color.

Colors in combination Two or more colors Combined together to get the desired effect of color is known as color combination.

Types of color combination: 1. Monochromatic combination 2. Polychromatic combination

Monochromatic combination Monochromatic combination is those in which different tones of same color are combined. For instance two shade of red, three shades of blue.

Polychromatic combination Polychromatic combination is those which have include all combinations of two or more different colors which may be alike or different in tone. For instance blue and green combinations

Spread effect of colors combinations: It is the effect of colors combinations on the spread of fabric and also shows how color effect on human psychology?

Factors affecting the Spread effect of colors combinations 1. 2. 3. 4.

Contrast of hue Contrast of tone Color harmony Relative space occupied by color

1. Contrast of hue In contrast of hue each color influences its neighboring colors so these also affect the spreading effect of color combinations. Thus in a cloth consisting of red and blue stripes the red appear tinged with the blue.

2. Contrast of tone This shows the effect of tones on each other for example on a white ground colors the darker color appears deeper whereas on a grey background the dark color appears normal.

3. Color harmony Color harmony means the sensation of color similarly by every person which is not possible because every person has different mode of perception.

4. Relative space occupied by color This shows the spread effect of colors whether they are used in more relative space or less relative space. More the space occupied by the color more will be its prominent effect and vice versa