Tuesday 8 January 2013

OUGD404 - Colour Theory: Lecture 1 and 2

Systematic Colour
Part 1
Introduction to colour principles

Colour is indefinable - we don't all see colour the same. We can never be sure of what we are seeing.

The physics of colour - Light travelling at different wave lengths.

Reds have a higher stronger wave length.

Colour is about perception.

They eye contains two kinds of receptors called and cones.

While the rods convey the shades of grey, tones allow the brain to perceive colours,

We only see 3 colours.

We perceive colour through light.

Primary colours
- Red
- Yellow
- Blue

Can't make these colours from any other colours.

Secondary colours
- Violet
- Green
- Orange

Created from primary colours.

Tertiary colours = Breadth of colours which exist between the two.

Red
Green
Blue

The second set of primary RGB colour mode

Cyan
Magenta
Yellow
Black

Black is classed as a primary but only as key colour.

Black defines shade and cone.

Cyan, magenta, yellow = physical colour
RGB = spectral colour

RGB to CMYK printed - shifting to colour mode

Subtractive colour - When mixing secondary colours we take away colour value from primary.

All mixed together we get black - hence subtractive colour

Subtractive - CMYK
Additive - RGB - Mix to get white

Blue is the weakest wave length - get refracted which is why we see blue. Sky isn't blue we only perceive colour because of optics.

Colour wheel - primary, secondary, tertiary

Complementary colour - opposites on wheel
The colours that don't work together
Mixing the complementary colour cancels out the colour - black

Tertiary colours - when complementary colours are mixed

Realistically mixing all primary together

We then did the colour exercise as a class, using the 15 coloured objects we had all collected, my colour was green.

We had to make our own colour wheel as a class by placing our objects around the class.








Part 2
Systematic colour
Dimensions of colour

Chromatic value = tone + saturation + hue

The hue is the name we give to the colour
Distinguish a colour in relation to its hue

We have to consider tone and saturation

Hue is the chromatic value

High chromatic colours - luminous and bright and vice versa

We can reduce chromatic value and this becomes a tint

We can reduce the colour wheel making it a tint

Shade - how bright/dull something is
Tone - Reducing chromatic value
Tint - Desaturating colour

We can keep chromatic value but desaturate a colour to change it

Surrounding the colour with different colours can change our perception

We then looked at pantone...

Takes the guess work out of colour

Based on the need to have a system that is commonly understood

Coding system to work with

You can colour match anything through a pantone

If you want to work with colour in design it has to be systematic

TASK

We then had to identify 7 objects that define the palest to darkest objects using given categories and below are the images of them.




 
We used the pantone colours to match them all...
 
1. Clarks Box
Darkest
Pantone formula guide/solid matte
Pantone 3308M
13pts Pantone Pro Blue
3 pts Pantone Yellow 14.3
5 pts Pantone Black 23.8
CMYK and RGB
 
2. Jewellery Box
Dullest
Pantone formula guide/solid uncoated
364U
10 pts Pantone Yellow 55.6
6 pts Pantone Pro Blue 33.3
2 pts Pantone Black 11.1
CMYK and RGB
 
3. Lid
Blueist green
Pantone formula guide/solid coated
3278C
13pts Pantone Pro Blue 81.3
3pts Pantone Yellow 18.7
 
4. Robinsons lid
Greenest green
Pantone formula guide/solid coated
3425C
15pts Pantone Green 83.3
1pt Pantone Yellow 5.6
2pts Pantone Black 11.1
CMYK
 
5. Zip
Palest green
Pantone formula guide/solid matte
365M
3/4pt Pantone yellow 4.7
1/4 Pantone Pro Blue 1.6
15pts Pantone Trans. Wt. 93.7
 
6. M&S Bag
Yellowist green
Pantone formula guide/solid coated
389C
15pts Pantone Yellow 93.8
1pt Pantone Green 6.2
 
7. Dog Chew
Brightest green
Pantone formula guide/solid matte
Pantone 802M
 



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