You can add more blue food coloring or edible blue dye and knead the dough to mix it very well.
blue and white
"Hardwardly", you can't. However, you can disassemble your printer and unsolder this horrible bright blue led
Waves of bright green light have higher frequency (shorter wavelength) and higher amplitude than waves of dim red light have. For example, if the colors were red and blue, Red light has a wavelength of 750 nm and blue light has a wavelength of 500 nm. Their wavelengths will differ.
Bright blue + a little bright green
Waves of bright green light have higher frequency (shorter wavelength) and higher amplitude than waves of dim red light have. For example, if the colors were red and blue, Red light has a wavelength of 750 nm and blue light has a wavelength of 500 nm. Their wavelengths will differ.
It's just blue really bright
blue light and red light make purple light
Yellow as it is bright and cheerful and makes you happy. Light blue like the sea, as that colour to can make you feel gay (happy).
you can't light is bright like the sun
Really light blue
If you don't need to be able to block out all light with your drapes, you should pick something in a light, gauzy fabric. The flowiness of the fabric will make them look bright by itself, and if you pick a light color like white, light blue, or yellow, it will brighten the room even more.
Blue is a primary light colour so it exists all the time. You cannot make it from any other colour. Shine a bright white light through a prism or look at a rainbow, you can see the "blue" part of the visible spectrum. Shine a light through a "blue" filter you can see the blue colour on a substrate. Between 400 and 500 nano meters frequency is where blue can be found