ozdemir.dev

What is Color Converter & Manipulator?

Color Converter & Manipulator is a free browser-based utility on Burak Özdemir that translates a single color value across common color models: HEX, RGB, HSL, HSV, CMYK and OKLCH. It sits alongside the site's other small developer tools, such as a cron expression generator, favicon generator and Unix timestamp converter.

What you can do with it

• Paste or pick a color, then read its equivalent in each supported format.
• Convert a brand HEX code into HSL or OKLCH when you need perceptually smoother palettes or CSS custom properties.
• Get CMYK values when a print or design handoff requires them.
• Manipulate the color — for example, adjust lightness, saturation or hue — and copy the resulting value in whichever notation your codebase uses.

Who it suits

The practical trade-off is scope versus depth: it is a fast, no-signup tool for individual conversions, not a palette manager, contrast checker or full design system. OKLCH support is the notable differentiator, since many older converters stop at HEX/RGB/HSL.

A concrete scenario: you have a brand color as #3B82F6, need an OKLCH version for a CSS gradient and a CMYK approximation for a print brief. Open the tool, enter the HEX value, and read both outputs in one pass. If you need to check text contrast or generate a full accessible palette, pair it with a dedicated contrast tool instead.

How do I convert a HEX color to RGB or HSL using this tool?

Open the Color Converter tool on ozdemir.dev, paste or type your HEX value into the input field, and the page shows the equivalent RGB, HSL, HSV, CMYK, and OKLCH values at once. There is no separate "convert to RGB" button to hunt for: the formats update together, so you read the one you need.

Color Converter & Manipulator - HEX, RGB, HSL, HSV, CMYK, OKLCH

A typical workflow

1. Enter the HEX code without worrying about the leading # — converters of this type normally accept both forms.
2. Read the RGB line for CSS like rgb(64, 120, 200) or the HSL line for hsl(210, 55%, 52%).
3. If you need to adjust the color, switch to the HSL or HSV view: changing lightness or saturation there keeps the hue stable, which is easier than editing three RGB channels by hand.

Which format to copy

Practical example

Suppose a brand color is #3B82F6. Paste it in and you get the RGB triplet for a canvas fill, plus an HSL pair you can nudge — say, dropping lightness a few points — to produce a darker hover variant without leaving the page. That single-source-of-truth approach avoids the common mistake of generating hover colors in a different tool and ending up with a slightly off hue.

If you only need a one-off RGB value, the tool is quick enough for that. If you are assembling a full palette, note that CMYK and OKLCH outputs are conversions of the same color, not print-calibrated or gamut-checked results — treat them as starting points and verify against your target medium.

Which color formats does the converter support, and how do I choose the right one for my project?

The converter on Color Converter & Manipulator handles HEX, RGB, HSL, HSV, CMYK, and OKLCH. In practice that covers the full chain from design handoff to production code: designers tend to think in HSL/HSV, browsers and CSS accept HEX/RGB/HSL, print work needs CMYK, and modern CSS supports OKLCH for perceptually even palettes.

Quick selection guide

A concrete scenario

Suppose you're building a design system. Define base colors in OKLCH so you can generate tints and shades by changing only the lightness channel and keep contrast predictable. Convert to HEX or RGB for older browser fallbacks, and expose HSL only if your team already uses it for quick hue tweaks. If the same brand goes to print, convert to CMYK and treat that as a separate, ink-checked value rather than a direct copy.

How to decide

Pick the format your target medium consumes natively, then convert for the other audiences:

• Web/app UI: OKLCH for palette generation, HEX/RGB/HSL for output.
• Print: CMYK, verified against a physical proof.
• Design tooling: whatever your picker uses (often HSV), converted on export.

Next step: take one color from your current project, run it through the converter into all six formats, and note which values you actually need to store. That list usually settles the choice.

Can I manipulate colors (lighten, darken, adjust saturation) directly on this site, and how?

Yes. The Color Converter & Manipulator on Burak Özdemir is built for exactly that: converting between HEX, RGB, HSL, HSV, CMYK and OKLCH, and adjusting a color's lightness, darkness and saturation rather than only reading its codes. The page lists it under "Featured Tools" alongside utilities like a Cron Expression Generator and Unix Timestamp Converter, so it is a small, single-purpose developer tool rather than a full design suite.

How you'd typically work with it

1. Paste or enter your starting color in any supported format (for example a HEX code from a brand guide).
2. Switch the output format to the one your codebase uses — HSL or OKLCH if you want lightness and saturation to behave predictably, CMYK for print checks.
3. Nudge lightness up or down to get lighter and darker variants, and raise or lower saturation to mute or intensify the hue.
4. Copy the resulting value back into your CSS, design tokens or graphics tool.

A concrete scenario

Say a client's brand blue is fixed, but you need a hover state, a disabled state and a subtle background tint. Instead of guessing new hex codes, you load the brand color, lighten it for hover, desaturate and lighten it for disabled, then take a very light, low-saturation version for the background. Because the tool covers multiple models, you can keep the hue consistent while only moving lightness and saturation — which is what makes a palette look intentional rather than random.

Choosing your working model

Trade-offs to keep in mind

• Converting between models can shift values slightly, so round-trip a color if exact brand fidelity matters.
• HSL lightness is not perceptually even — two colors at the same HSL lightness can look different in brightness. OKLCH handles this better, which is why it's listed among the supported formats.
• A browser tool is fastest for one-off tweaks; for whole palettes you'll still want to define tokens in code.

Next step: open the tool, enter your base color, and produce three variants — hover, active and muted — saving each as a named token so the relationships stay visible in your stylesheet.

What are the other featured tools on ozdemir.dev, and what does each one do?

Beyond the color converter, ozdemir.dev features three other utilities, all aimed at small, repetitive development tasks:

• Cron Expression Generator — helps you build or decode cron schedule strings instead of hand-writing the five-field syntax and guessing whether */15 9-17 * * 1-5 means what you think it does.
• Favicon Generator — produces the small icon files a site needs for browser tabs, bookmarks and home-screen shortcuts, so you don't have to assemble the size variants manually.
• Unix Timestamp Converter — converts between epoch timestamps and human-readable dates, the usual chore when reading logs, API payloads or database rows.

The page also lists a set of "Latest Projects" that go beyond developer plumbing: a Full Name Generator, a Morse Code Translator and Social Share Buttons. These are lighter, more general-purpose tools rather than part of the featured developer set.

A practical next step: if you're debugging a scheduled job, open the Cron Expression Generator first and paste in the existing expression to confirm its meaning before editing it. If you're launching a small site, pair the Favicon Generator with the color converter so the icon and theme colors come from the same palette — that consistency is easy to lose when the two tasks are done in separate sittings.

How to choose among them: these tools suit quick, one-off lookups more than batch processing. If you need to convert hundreds of timestamps or generate favicons for many sites at once, a script or build step will serve you better; if you just need the answer for one value, a browser tool like this is faster than writing code.

How do I generate a favicon from an image or color, and what sizes should I use?

You can generate a favicon either from an image you already have or from a single brand color. If you have a logo, start with a square image, ideally 512×512 pixels, and let a generator downscale it into the standard sizes. If you only have a color, a generator can produce a simple solid square or a letter-based icon.

Burak Özdemir offers a Favicon Generator among its small development utilities, alongside a Color Converter and other tools. That means you can pick a color in one tool and feed it into the favicon workflow without leaving the site.

Sizes worth producing

Modern browsers rarely need a long list of files, but a few sizes still cover most cases:

• 16×16 and 32×32 — classic browser tab icons; 32×32 also works for Windows taskbar shortcuts.
• 48×48 — used by some Windows and desktop contexts.
• 180×180 — the Apple touch icon for home-screen bookmarks on iPhone and iPad.
• 192×192 and 512×512 — required by web app manifests for Android and installable PWAs.
• A scalable SVG — optional, but sharp at any size and increasingly supported.

A practical set is one .ico containing 16, 32 and 48 pixel versions, plus PNGs at 180, 192 and 512, plus an SVG if you have one.

Image vs. color

A concrete next step

Take your logo, crop it to a square, and simplify anything that will blur at 16 pixels — thin strokes and small text usually vanish. Then generate the size set above and check the 16×16 result first, since that is the hardest size to get right. If it reads clearly there, the larger versions almost always will.