Science Knowings: CSS Course For Social Media

CSS Colors

CSS Selectors: Recap

In our previous session, we explored CSS selectors, the powerful tools to target specific HTML elements and apply styles to them.

Introduction to CSS Colors

Colors in CSS

Colors play a vital role in web design, setting the mood and enhancing the visual appeal of your website. CSS provides various ways to define and apply colors to your elements.

Color Palettes

Color palettes are pre-defined sets of colors that work well together. They help ensure a harmonious and visually pleasing design.

Hexadecimal Color Codes


Hexadecimal color codes are the most common way to define colors in CSS. They consist of six hexadecimal digits, representing the red, green, and blue components of the color.

RGB and RGBA Color Values

rgb(R, G, B)
rgba(R, G, B, A)

RGB (Red, Green, Blue) values represent colors using their individual red, green, and blue components. RGBA values add an alpha channel for transparency.

HSLA and HSVA Color Values

hsl(H, S, L)
hsva(H, S, L, A)

HSLA (Hue, Saturation, Lightness) and HSVA (Hue, Saturation, Value, Alpha) values define colors based on their hue, saturation, and lightness or value. They allow for intuitive and precise color manipulation.

Color Theory

Color theory provides guidelines for creating harmonious color combinations. Understanding color relationships can enhance the impact and effectiveness of your designs.

Complementary Colors

Complementary colors are opposite each other on the color wheel and create a high-contrast effect. Using them wisely can add visual interest and balance.

Analogous Colors

Analogous colors are adjacent to each other on the color wheel and create a harmonious and cohesive effect. They can be used to create a sense of unity and flow.

Triadic Colors

Triadic colors are equidistant from each other on the color wheel and create a visually stimulating effect. They are often used for dynamic and eye-catching designs.

Monochromatic Colors

Monochromatic colors are variations of a single hue, creating a sophisticated and elegant effect. They can be used to convey a sense of unity and calm.

Color Contrast

Color contrast is essential for ensuring accessibility and readability. Proper contrast ratios between text and background colors help users with visual impairments perceive content.

Web Accessibility Guidelines (WCAG)

WCAG provides guidelines for accessible web design, including color contrast requirements. Meeting these guidelines ensures your website is accessible to all users.

Using CSS Color Variables

CSS color variables allow you to define and reuse colors throughout your stylesheet. They enhance flexibility and maintainability.

CSS Color Functions

CSS provides color functions like mix() and saturate() that enable you to manipulate and adjust colors dynamically.

Next Up: CSS Backgrounds

In the next session, we'll dive into CSS backgrounds, exploring how to set colors, images, gradients, and other effects on the background of your elements.