There are two easy ways to make any color darker in value. Depending on what result you are looking for, either one will work for you.
The first way (and easiest to understand) is by adding black. You have to be careful, however, because it doesn't take much black to get a REALLY dark value. The result of this technique is a sort of "shadow" of the original color. This might be fine for the application you need, but it can also make a painting look like a cartoon.
The second way to make any color darker is to add some of that color's complement. A color's complement is easiest to see on a typical color wheel. In the case of red, its complement is green, but you have to be careful to fully understand what type of red you're dealing with. PURE red's complement is green, but a red that is on the yellow side will have a bluish-green complement, and a red that is on the blue side will have a yellowish-green complement. This technique gives a darker value that is also a different hue, but this may also suit your application if you're looking for a more interesting and nuanced color.
A muddy brown color is the color you get when you mix purple and green. To make purple you can mix red and blue, and to make green you can mix yellow and blue. However, when secondary colors like purple and green are mixed together. But it generally creates a brown hue.
i would use a slightly darker shade of red and airbrush some white on the flicks of the flames.that should make your flames almost invisible but still be able to see them.
Yes, you can DYE a light color item, bleached or not, to a darker color.
IF it's paint, blood red with a sunny yellow does the trick-you want it darker, add more red. Lighter, add more yellow. IF it's crayons-don't even bother trying, Just get the orange crayon and doodle. IF it's coloring pencils-look at the second one.
painting over what you already painted to make it look darker
Any color can be made darker by adding black.
i would say a much darker red.
Red ochre.
To make orange into red, you would add a darker shade of red or a small amount of magenta. Adding a darker red or magenta will help deepen the color and shift it more towards a red hue.
add more black or dark red
Red and blue make the color purple, but for dark purple you would mix red and blue together and add a bit more blue than red to make it darker.
Yes red is darker than green.
it will probaly still make purple just a little darker
Red and yellow make shades of orange when mixed. They are perfect orange when mixed in even amounts. The more red is in the color the darker the color will be.
Yes, red is generally darker than orange. Red has a longer wavelength and thus appears darker than orange, which is a lighter and brighter color.
To make bright red darker, you can mix in a small amount of black paint to darken the color. Start by adding a little bit at a time until you reach your desired shade of dark red. Alternatively, you can mix in a small amount of a darker red paint to deepen the hue.
When blood cells have oxygen they are red, when they have no oxygen they are a darker shade of red.