Color Converter
Convert between HEX, RGB and HSL with a live preview and color picker — entirely in your browser.
- Runs in your browser
- No upload, no tracking
- Free forever
How it works
A color converter translates a color between the formats used in web and design work — HEX (#FF5733), RGB (rgb(255, 87, 51)) and HSL (hsl(14, 100%, 60%)) — computing the equivalent values for each so you can copy whichever your stylesheet, design tool or code needs. This tool also previews the color live and lets you pick one visually. It runs entirely in your browser and is built by JusDB, a managed database operations team.
- 1
Enter or pick a color
Type a HEX, RGB or HSL value into the input — the format is detected automatically — or click the swatch to open your browser's native color picker.
- 2
See it live
A large preview block updates instantly to show the exact color, with an inline error if the value can't be parsed.
- 3
Read every format
HEX, RGB and HSL are computed side by side, along with a breakdown of the individual red, green, blue, hue, saturation and lightness components.
- 4
Copy a value
Click copy next to any of the three formats to send it to your clipboard. All conversion happens locally — nothing is uploaded.
Frequently asked questions
- What color formats are supported?
- The tool supports HEX (e.g. #FF5733 or #F53), RGB (e.g. rgb(255, 87, 51) or 255, 87, 51), and HSL (e.g. hsl(14, 100%, 60%)) formats. All are interconverted simultaneously.
- How do I use the color picker?
- Click the colored square to the right of the input field to open your browser's native color picker. Selecting a color automatically populates all three format outputs.
- What is the difference between HEX, RGB, and HSL?
- HEX is the hexadecimal representation of RGB values, used widely in web development. RGB specifies red, green, and blue channel intensities from 0–255. HSL (Hue, Saturation, Lightness) is more intuitive for adjusting colors — hue is the base color (0–360°), saturation is how vivid it is, and lightness is how bright.
- Can I enter a 3-digit hex code?
- Yes. Shorthand hex codes like #F53 are expanded to #FF5533 automatically.
- Do I need to type the format prefix?
- No. The tool auto-detects the format from what you type — a leading # or bare hex digits parse as HEX, a comma-separated triple or rgb(...) parses as RGB, and hsl(...) parses as HSL. You can also click the swatch to pick a color visually.
- Why do the RGB and HSL values look slightly rounded?
- RGB channels are integers from 0–255 and HSL hue, saturation and lightness are rounded to whole numbers, so round-tripping a color between formats may shift it by a unit. HEX remains the exact source value you entered.
- Is my data sent anywhere?
- No. All conversion math runs locally in your browser using pure JavaScript. Nothing is sent to JusDB or any server.
Choosing the right color format
Every color format describes the same pixel, but each makes a different job easier. Knowing which one to reach for saves you from guessing at values in a stylesheet — and from shipping a palette that looks great on your monitor yet fails for real users.
HEX, RGB and HSL each have a sweet spot
HEX (#FF5733) is compact and dominates HTML, CSS and design handoffs, but the raw digits tell you nothing about how a color will look. RGB and RGBA expose the red, green and blue channels directly, which is handy when you are mixing values in code or piping them into a canvas. HSL and HSLA are the most human-friendly: because hue, saturation and lightness map to how we actually think about color, they make manual tweaking far less of a guessing game.
Reach for HSL when you need to nudge a shade rather than replace it. Want a hover state that is 10% darker? Drop the L value and leave H and S untouched. Need a muted variant for a disabled button? Lower the S. Doing the same edit in HEX or RGB means recomputing all three channels by hand, which is exactly the kind of round-trip math this converter removes.
Alpha, shorthand, and the 8-digit hex
Opacity lives in the alpha channel. RGBA and HSLA add a fourth value from 0 (fully transparent) to 1 (fully opaque), and modern CSS lets you fold the same idea into hex with an 8-digit code: the last two digits are the alpha byte, so #FF5733CC is that orange at roughly 80% opacity. The familiar 6-digit hex is just RGB with no alpha, and the 3-digit shorthand (#F53) expands by doubling each digit to #FF5533 — convenient, but it can only express 4,096 colors versus the full 16.7 million.
Newer spaces: oklch and lab
CSS Color 4 adds perceptually uniform spaces like oklch() and lab(). Their advantage is that equal numeric steps look like equal visual steps, so generating an even tint scale or interpolating between two colors produces smoother, less-muddy results than HSL. They also reach colors outside sRGB on wide-gamut (P3) displays. The trade-off is gamut: a vivid oklch value may have no sRGB equivalent and will be clipped on standard monitors, so test your fallbacks. HEX, RGB and HSL all stay safely within sRGB, which is why they remain the dependable baseline for the web.
Contrast is a constraint, not an afterthought
Picking a color is only half the job — it has to be readable against its background. WCAG defines contrast as a ratio between 1:1 and 21:1: body text needs at least 4.5:1 to meet AA, large text needs 3:1, and AAA pushes those to 7:1 and 4.5:1. Because the ratio is driven by relative luminance, HSL is a useful lens here too — lowering lightness on dark-on-light text, or raising it on light-on-dark, is the fastest way to claw back contrast without changing the hue your brand depends on. Convert a candidate color here, then verify the pair before you commit it.
Working across a whole interface? Pair this with the other utilities in the JusDB dev tools suite, and read more on building reliable data-driven products on the JusDB blog.