CMYK color model of the primaries: cyan and yellow produce green, cyan and magenta produce blue, yellow and magenta produce red (these subtractive secondary colors correspond roughly to the additive primary colors), plus layering all three of them resulting in black. With halftoning, a full continuous range of colors can be produced. To improve print quality and reduce moiré patterns, the screen for each color is set at a different angle. While the angles depend on how many colors are used and the preference of the press operator, typical CMYK process printing uses any of the following screen angles: The "black" generated by
Blue–green distinction in language Dutch distinguish blue (respectively ' and ') and green (' and ') very similarly to English. There are (compound) terms for light blue (' and ') and darker shades of blue (' and '). In addition, adjective forms of most traditional color names are inflected to match the corresponding noun's case and gender. The terms for "blue" and "green" have changed completely in the transition from Ancient Greek to Modern Greek. Ancient Greek had γλαυκός ("glaukós") "clear light blue", also with a turquoise/teal/green hue (it was a typical term for goddess Athena's eyes, portrayed in green or light blue) contrasting