Color code conversion is the process of translating a color from one representation (model) to another. In web design, graphic design, digital media, and print, common models include HEX (hexadecimal), RGB (red, green, blue), HSL (hue, saturation, lightness), and CMYK (cyan, magenta, yellow, black). With an online color converter, you can instantly switch between standards to ensure color consistency and cross‑platform compatibility across your projects.
HEX is the most common color notation in web design, starting with a “#” followed by six hexadecimal digits (RRGGBB), e.g. #FF5733. Each pair represents the intensity of red, green, and blue (00–FF). Compact and easy to copy into CSS, it’s a must‑have for front‑end development. Our tool accepts input with or without the # and auto‑detects the format.
RGB is based on the additive principle of light and is used for screens (monitors, phones, TVs). Each channel ranges from 0 to 255, yielding about 16 million colors. Enter as “R,G,B”, e.g. 255,87,51. Converting RGB to HEX lets designers precisely control display colors, and vice versa for use in image editors.
HSL aligns more closely with human perception: Hue (0–360°, red=0°, green=120°, blue=240°), Saturation and Lightness as percentages (0–100%). It’s ideal for fine‑tuning colors – e.g., increasing lightness or reducing saturation for harmonious palettes. The tool accepts formats like 200,100%,50% and converts accurately.
CMYK is the standard for print, using subtractive mixing. Each component is a percentage (0–100%). When moving screen designs to print, converting RGB or HEX to CMYK is essential to avoid color shifts. Our converter uses reliable algorithms to give you usable CMYK values.
Similar to HSL, but Value (brightness) represents the intensity of the color, while Lightness is relative brightness. HSV is widely used in image processing (e.g., segmentation, filtering). Format: “H,S,V” with H 0–360°, S and V 0–100%.
Recommended by CSS Color Level 4, HWB offers a more intuitive way to pick colors: start with a hue, then mix in white and black. For example, hwb(200,20%,10%) adds 20% white and 10% black to a blue hue. Great for design system palettes.
The device‑independent color space defined by the CIE, where all visible colors can be represented as positive X,Y,Z values. It serves as the bridge to other spaces like LAB. Our tool uses the D65 illuminant, suitable for color science applications.
One of the most perceptually uniform color spaces: L* (0–100) for lightness, a* for red‑green (positive = red, negative = green), and b* for yellow‑blue (positive = yellow, negative = blue). The ΔE difference can quantify color deviations, widely used in color management and quality control.
The polar form of LAB: L for lightness, C for chroma (color intensity), H for hue angle (0–360°). It’s more designer‑friendly for adjusting “vividness” and hue. Often used in palette generation and harmony analysis.
Björn Ottosson’s ultra‑perceptual uniform space, fixing LAB’s non‑uniformity in high‑saturation areas. Widely adopted in modern CSS (via color(oklab ...)) and graphics libraries for smoother gradients and better color differences. Format L,a,b, roughly L 0–1, a/b –0.4 to 0.4.
The cylindrical version of OKLAB, similar to LCH but based on the OKLAB space. CSS Color Level 4 natively supports oklch(), making it a new web standard. Format L,C,H with L 0–1, C ≥0, H 0–360°.
Enter a valid color value in any model’s input field (e.g., HEX: #1E9FFF, RGB: 30,159,255, etc.).
Click the “Convert” button next to that model – the tool will automatically compute the corresponding values for all other models and update the preview background.
Click “Copy” to copy the code for that model to your clipboard, ready to paste into design software, code editors, or documents.
The preview area shows the current color with its HEX and RGB references.
Responsive design works smoothly on mobile devices too.
Front‑end development: unify color variables across your UI system, convert HEX to RGB for Canvas or animations.
Graphic design: convert CMYK designs to HEX for web display, keeping brand colors consistent.
Data visualization: dynamically generate color scales by adjusting HSL lightness and saturation.
Print proofing: convert RGB logos to CMYK for accurate proofs.
Personal projects: quickly get color codes in different formats and reuse them across tools.
HEX input: accepts 3‑digit shorthand (e.g., #FFF expands to #FFFFFF) and 6‑digit standard, case‑insensitive.
RGB: three numbers between 0–255, comma‑separated.
HSL: hue 0–360, saturation and lightness as 0–100 numbers (with or without %), e.g., “200,100,50” or “200,100%,50%” are both parsed.
CMYK: four numbers 0–100, comma‑separated, e.g., “88,38,0,0”.
If input is invalid, the tool shows a friendly warning and keeps previous values – just re‑enter correctly.
Pro tip: Always consider gamut differences between models. RGB has a wider gamut than CMYK – some vibrant RGB colors may not be reproducible in CMYK. Our converter does its best to match them, giving you a close approximation for reference.
© OkeyTool.com provides free, safe online tools. This color converter runs entirely locally – no data is uploaded, so your designs stay private.