What is a Color Picker?

A color picker is a tool that lets you visually select a color and then read its numeric representation in different color formats. Whether you are a web developer needing a precise HEX code for CSS, a designer converting client brand colors between systems, or a content creator choosing a palette for a social media post, a color picker removes the guesswork from color selection.

Our free online color picker works entirely in your browser. Select a color using the visual picker, type in any HEX, RGB, or individual R/G/B channel values, and instantly see all three formats updated in real time. There is no account required, no data is sent to any server, and the tool works offline once the page is loaded.

How to Use the Color Picker

Click the color swatch on the left to open the browser's native color chooser and pick any color visually.
Alternatively, type a HEX value directly (e.g. #ff6347) into the HEX input field.
Or enter individual R, G, B channel values (0–255) in the small number inputs below the RGB display.
All three formats — HEX, RGB, and HSL — update instantly.
Click Copy next to any format to copy it to your clipboard.

Understanding Color Formats

Colors in digital design are represented in several different systems. Each format has its own use case, and being able to convert between them quickly is a fundamental skill in web development and graphic design.

HEX (Hexadecimal) — The most common format in web development. Starts with # followed by six hexadecimal digits (0–9 and A–F). Each pair represents the red, green, and blue channels respectively. Example: #3b82f6 is a vibrant blue.
RGB (Red, Green, Blue) — Defines color by specifying the intensity of each channel on a scale of 0 to 255. Used in CSS (rgb(59, 130, 246)) and in many design tools. Easier to understand conceptually because you can reason about each channel independently.
HSL (Hue, Saturation, Lightness) — Describes color in terms humans find intuitive. Hue is the angle on the color wheel (0–360°), saturation is the vividness (0–100%), and lightness is the brightness (0–100%). Making a color lighter or darker by adjusting only lightness is far simpler in HSL than in RGB or HEX.

HEX to RGB Conversion

Converting from HEX to RGB involves splitting the six-digit HEX string into three pairs and converting each from base-16 to base-10. For example, #ff6347 splits into ff, 63, and 47, which are 255, 99, and 71 in decimal — giving rgb(255, 99, 71) (tomato red). Our tool does this calculation instantly as you type.

RGB to HSL Conversion

The RGB to HSL conversion is more complex mathematically. It involves normalising each channel to a 0–1 scale, then computing the maximum and minimum channel values to derive lightness, then saturation, and finally hue based on which channel is dominant. This converter handles all that math automatically, giving you HSL values alongside HEX and RGB the moment you pick a color.

Common Use Cases for Color Conversion

Web development — CSS accepts HEX, RGB, RGBA, HSL, and HSLA. Convert to whichever format your stylesheet or design system prefers.
Brand color management — Clients often share brand colors in one format; your codebase may require another. Convert once and store the correct value.
Accessibility checks — HSL makes it easy to adjust lightness for contrast ratio improvements without shifting the hue.
Design system tokens — Design tokens in Figma or Storybook often need colors in multiple formats for different targets (CSS, Android, iOS).
Image editing — Photoshop, GIMP, and Figma all show colors in multiple formats. Use this tool to translate between them when copying values.
Print to digital — CMYK colors from print designs often need to be approximated in RGB/HEX for digital use.

Frequently Asked Questions

What is the difference between HEX and RGB?

HEX and RGB represent the same information — the intensity of red, green, and blue channels — but in different notation systems. HEX uses base-16 (hexadecimal) numbers compacted into a six-character string. RGB uses three decimal numbers from 0 to 255. Both specify the exact same color; HEX is more compact for code, RGB is more readable for humans.

Why would I use HSL instead of RGB?

HSL is easier to manipulate intuitively. If you want a lighter version of a color, increase the L (lightness) value. For a more muted version, reduce S (saturation). Doing the same in RGB requires changing all three channels simultaneously, which is harder to reason about. HSL is especially popular in CSS for generating color variations in design systems.

Can I enter a HEX code directly?

Yes. Type or paste your HEX code (with or without the leading #) directly into the HEX input field. The picker swatch and all other format displays will update instantly.

Does this tool support transparency (alpha)?

The current version handles fully opaque colors (no alpha channel). For CSS use cases needing transparency, you can use the RGB output as a base for rgba(r, g, b, 0.5) or the HSL output for hsla(h, s%, l%, 0.5) — just replace the format keyword and add your alpha value.

Is my color data private?

Completely. All color calculations happen in your browser using JavaScript. No color values, history, or palette data is sent to any server. The tool works offline once the page is loaded.

How do I convert a CSS color name like "tomato" to HEX?

Named CSS colors are not directly supported by this picker. The easiest workaround is to type the name into a browser console — e.g. document.body.style.color = "tomato" — then use the browser's DevTools color picker to read off the HEX value, and paste it into this tool for further conversion.