1ºESO. COLOUR WHEEL
HELLO EVERYBODY!!!
We are going to continue with the study of colour by doing a colour -wheel.
I have told you about light and how it works. Do you remember?
The white light or visible light (the sun light) is an electromagnetic wave. The only kind of wave that we can perceive with our sight.
You can see here all the types of elctromagnetic waves there are in the universe, and how, the visible light, is only that short range in the middle of the spectrum:
So let´s say that colour is a quality of light, and that each colour has a wave lenght .
The light reflects on the objects, and we are able to perceive the colour of each object, because it only reflects the wave length of the colour the object is. That means that a tomato, for example, only reflects the wave lenght of the colour red.
Anyhow, we can study the colour as light, or as a material. Coloured lights, like the ones you are seeing out of your computer right now, or coloured paints, like coloured pencils.
So we have two different models to study the colour. They are called:
- Additive Synthesis--- if we talk about coloured lights. In this model the primary colours are: RED, GREEN and BLUE.
- Subtractive Synthesis--- if we talk about paints. In this model the primary colours are: MAGENTA, CYAN and YELLOW.
Here you can see both and how they complement each other:
( como veis, en lugar de usar el magenta, en este vídeo se usa el rojo. PLEASE!!! Usad el magenta!!!!!!! Los otros dos primarios están bien. Se muestra muy bien en el vídeo como ir mezclando poco a poco los colores con los lápices. Un truco: si ponéis el nombre del color en google, os saldrá un ejemplo del color que es)
We are going to continue with the study of colour by doing a colour -wheel.
I have told you about light and how it works. Do you remember?
The white light or visible light (the sun light) is an electromagnetic wave. The only kind of wave that we can perceive with our sight.
You can see here all the types of elctromagnetic waves there are in the universe, and how, the visible light, is only that short range in the middle of the spectrum:
So let´s say that colour is a quality of light, and that each colour has a wave lenght .
The light reflects on the objects, and we are able to perceive the colour of each object, because it only reflects the wave length of the colour the object is. That means that a tomato, for example, only reflects the wave lenght of the colour red.
Anyhow, we can study the colour as light, or as a material. Coloured lights, like the ones you are seeing out of your computer right now, or coloured paints, like coloured pencils.
So we have two different models to study the colour. They are called:
- Additive Synthesis--- if we talk about coloured lights. In this model the primary colours are: RED, GREEN and BLUE.
- Subtractive Synthesis--- if we talk about paints. In this model the primary colours are: MAGENTA, CYAN and YELLOW.
Here you can see both and how they complement each other:
For now, we are going to study only the Subtractive Synthesis, so remember:
PRIMARY COLOURS: SECONDARY COLOURS:
- Magenta - Red
- Cyan - Blue- purple ( azul añil)
- Yellow - Green
HOW TO DO THE COLOUR WHEEL
We are going to do a 12 divisions colour wheel in an A4 drawing paper.
In the next video you can see how to divide a circle in 12 parts. We are going to use a 7,5 cm radious circle.
Now you need to remember this video that I posted for you to practice with the coloured pencils. How to mix colours with layering....
WE ARE GOING TO USE ONLY THE 3 PRIMARY COLOURED PENCILS, AND WE ARE GOING TO MIX THEM BY LAYERING, AS IT IS SHOWN IN THE VIDEOS.
So, we colour the 3 primary colours with 3 divisions between one and the next one.
Afterwards, mixing the colours with layers, as you can see in this video, we can get the rest of the secundary colours.
( como veis, en lugar de usar el magenta, en este vídeo se usa el rojo. PLEASE!!! Usad el magenta!!!!!!! Los otros dos primarios están bien. Se muestra muy bien en el vídeo como ir mezclando poco a poco los colores con los lápices. Un truco: si ponéis el nombre del color en google, os saldrá un ejemplo del color que es)
OBVIAMENTE, ¡¡¡¡HAY QUE USAR SOLO LOS 3 LÁPICES DE LOS 3 COLORES PRIMARIOS, Y MEZCLARLOS.
NO ACEPTARÉ NINGÚN TRABAJO DONDE EL VERDE, POR EJEMPLO, O CUALQUIER OTRO SECUNDARIO, SE HAYA HECHO CON UN LAPICERO VERDE!!!!!
That is all
Take care!
GREETINGS!!!
