File:Delicious_fresh_strawberries_(4735910403).jpg · Wikimedia Commons · See Wikimedia Commons

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أحمر

Also known as red color, color red

Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–750 nanometers. It is a primary color in the RGB color model and a secondary color (made from magenta and yellow) in the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet and vermillion to bluish-red crimson, and vary in shade from the pale red pink to the dark red burgundy.

AI overview

Red is a color of light at the long wavelength end of the visible spectrum, with wavelengths between 625 and 750 nanometers, and it appears opposite violet. It matters in color science and technology because it functions as a primary color in the RGB color model used by light-based devices and as a secondary color in the CMYK model used in printing.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Color.caption: Clockwise, from top left: fresh strawberries; Northern cardinal; Magdalena Frąckowiak wearing a red dress at Paris Fashion Week; Honor guard of Chinese People's Liberation Army holding red flags; Cardinal Théodore-Adrien Sarr, Archbishop of Dakar.
Color.hex: FF0000
Color.wavelength: Approx. 625–740
Color.frequency: ~480–400
Color.source: X11
Color.cmyk: (0, 100, 100, 0)
Color.c: 0
Color.m: 100
Color.y: 100
Color.k: 0
Color.title: Red

via Wikipedia infobox

Article · العربية

اللون الأحمر أحد الألوان الأولية الثلاثة للضوء المرئي، (وهي: الأحمر، والأخضر، والأزرق؛ وتختصر بالإنجليزية:RGB) وأيضا في الألوان الأولية المادية (وهي: الأحمر، والأصفر، والأزرق). ويتراوح طول موجة اللون الأحمر بين 625-760 نانومتر. وتعرف أطوال الموجات الأقل من ذلك باسم الأشعة تحت الحمراء، ولا يمكن تمييزها بالعين البشرية وإنما باستخدام أجهزة خاصة تحس بها بالحرارة.

Abstract from DBpedia / Wikipedia · CC BY-SA