"Bastard color" is a term used in the world of color theory and design, typically referring to a color that is created by blending two colors together, resulting in a shade that may not be distinctly one or the other. The term can sometimes also imply a color that is muddied or less pure than its base colors.

The CcMmYK color model is an extension of the traditional CMYK color model, which is often used in color printing. The CMYK model represents colors through the use of cyan (C), magenta (M), yellow (Y), and black (K) inks. These colors are subtractive, meaning that they subtract light from a white background to create various colors.

Citron is a bright, vibrant yellow-green color that resembles the hue of the citron fruit, which is a large, yellow citrus fruit. The color is often associated with freshness and energy and is used in design and fashion to evoke a sense of warmth and cheerfulness. Citron can vary in shades from a more intense yellow to a softer green, but it always maintains that distinctive lively quality.

A **simple lens** is an optical device made from a single piece of transparent material, such as glass or plastic, that is shaped to converge or diverge light rays. Simple lenses are primarily categorized into two types: 1. **Convex Lens (Converging Lens)**: This type is thicker in the middle than at the edges. It causes parallel rays of light to converge to a focal point. Convex lenses are used in applications like magnifying glasses, cameras, and microscopes.

The CIE 1964 color space, also known as CIE 1964 (or CIE 1964 10° Standard Observer), is a color space defined by the International Commission on Illumination (CIE) to describe how colors are perceived by the human eye under standard lighting conditions. It is a standard for color representation and is used in various applications such as color science, printing, and display technologies.

Capri is a bright, vibrant shade of blue. It is often associated with the colors of the Mediterranean Sea, particularly around the island of Capri in Italy, known for its stunning blue waters. The color typically has a lively and refreshing quality, reminiscent of summer skies and tropical environments. Capri can be used in various design contexts, including fashion, interior design, and graphic design, where it adds a sense of energy and cheerfulness.

A "colourant," or "colorant," refers to a substance that imparts color to another material or product. Colourants can be natural or synthetic and are used in a variety of applications across different industries, including: 1. **Food**: Colourants are added to food products to enhance their appearance. Natural colourants include beet juice, turmeric, and paprika, while synthetic options include artificial dyes.

Cordovan is a color that is typically associated with a rich, deep shade of brown, often resembling the color of the hide derived from the shell of a horse's rear. It has warm, reddish undertones, which can give it a luxurious and sophisticated appearance. The name "cordovan" originally referred to the high-quality leather made from this hide, which has since influenced the color's designation.

EciRGB, or Ecological RGB, is a color space designed for digital imaging and multimedia applications that prioritize ecological and sustainable practices. It was developed to provide a more accurate representation of colors for use in the print and digital industries, specifically with the needs of various devices and media in mind. The EciRGB color space is based on the RGB color model but includes a wider gamut and is optimized for high-quality color reproduction.

Ecru is a color that is often described as a light beige or grayish-tan. It is a neutral shade that resembles the natural color of unbleached linen or the shade of certain types of kraft paper. The name "ecru" is derived from the French word for "raw" or "unbleached" and is commonly used in fashion, interior design, and art to denote a soft, subdued tone that pairs well with a variety of colors.

Prabashvara is a concept from Hindu philosophy, particularly associated with the practices and teachings of certain yogic traditions. The term can be broken down: "Praba" meaning light or illumination, and "Shvara" meaning lord or master. Therefore, Prabashvara can be interpreted as the "Illuminated Lord" or the "Master of Light.

Cornflower blue is a medium-to-light shade of blue that is named after the cornflower plant (Centaurea cyanus), which features vibrant blue blossoms. The color is characterized by its bright, somewhat muted hue, reminiscent of the sky on a clear day. Cornflower blue is often associated with feelings of calmness and serenity and is commonly used in various design contexts, including fashion, interior design, and graphic design.

Mars Black is a synthetic black pigment commonly used in various art media, including paints, inks, and coatings. It is known for its high opacity and excellent lightfastness, which means it resists fading over time when exposed to light. Mars Black is made from iron oxide, a durable and stable compound, making it suitable for both artist-grade and commercial applications.

Mustard is a warm, rich shade of yellow that resembles the color of the condiment made from ground mustard seeds. It typically has a brown or golden undertone, which gives it a slightly muted and earthy appearance compared to brighter yellows. Mustard is often used in fashion, interior design, and art for its ability to evoke a sense of warmth and comfort.

Pastel refers to a group of soft, pale colors that are created by mixing pigments with a higher proportion of white, which lightens the hue. This results in muted shades that are often characterized by their lightness and desaturation. Common pastel colors include soft shades of pink, blue, green, yellow, lavender, and peach. Pastels are widely used in art, design, fashion, and interior decorating due to their gentle and calming aesthetic.

Coyote brown is a shade of brown that is often used in military and tactical applications. It is characterized by its earth-tone appearance, which provides effective camouflage in various environments, particularly arid and desert settings. The color is typically a warm, muted brown that can also have slight reddish or yellowish undertones, making it versatile for blending into natural landscapes. Coyote brown is commonly seen in uniforms, gear, backpacks, and other equipment used by military and law enforcement personnel.

Cyclamen refers to a shade of pink that is often described as a vibrant, bright magenta or fuchsia. The color is named after the cyclamen flower, which typically blooms in this striking hue. Cyclamen can vary in tone but is generally associated with a lively, cheerful aesthetic. In design and fashion, it's used to evoke feelings of warmth, energy, and playfulness. The color is sometimes used in palettes to complement other bright or pastel shades.

Wide-gamut RGB (WCG RGB) refers to a type of RGB color space that encompasses a larger range of colors than standard RGB color spaces, such as sRGB or Adobe RGB. The term "wide-gamut" suggests that it can represent a more extensive range of colors, which is particularly useful in applications where color fidelity and depth are critical, such as digital photography, graphic design, video production, and high-quality printing.

Cerebral achromatopsia is a neurological condition characterized by the inability to perceive colors, despite having normal vision and functioning eyes. Unlike congenital achromatopsia, which is a genetic condition affecting the retina, cerebral achromatopsia results from damage to the brain, specifically in areas involved in color processing.

The International Color Appearance Model (ICAM) is a mathematical model that describes how colors appear to the human visual system under varying conditions of illumination, surface properties, and viewing environments. It aims to provide a framework for understanding and predicting color perception, taking into account various factors that influence how colors are seen. ICAM incorporates several principles, including: 1. **Color Adaptation**: The model accounts for how the eye adjusts to different lighting conditions, which can affect the perceived color of objects.