Check color name search, color code conversion, and image color sampling on one screen
Obtain colors from color codes or images, and check the color impression, close color names, color schemes, and text readability.
Enter Color
Choose from Color Names
Show Representative ColorsNames use W3C CSS standard colors plus localized display labels. Appearance and everyday names may vary, so use HEX or RGB for specifications.
Conversion Result
Choose a color from HEX, RGB, HSL, recommended colors, or color names.
Color names are shown as a reference.
Check the readability of the selected text color when placed on this background color.
Select Image
No image selected yet.
Image & Palette
Once an image is loaded, it will be displayed here. Click on the image to accurately obtain the color at that position.
Select an image and click “Extract main colors.”
Results are shown only after you select a color or image.
What this color and palette tool can do
Convert HEX, RGB, and HSL, identify the closest CSS standard color names, pick pixels from an image, and extract a 2–16 color palette. The image remains in your browser.
Nearest standard color names
See localized display names, CSS keywords, and exact HEX values.
Precise color conversion
Supports 3-, 4-, 6-, and 8-digit HEX with alpha.
Image color extraction
Pick a pixel or cluster the image’s dominant colors.
Contrast checks
Calculate WCAG contrast for normal and large text.
Steps to convert color codes
- Choose input formatUse HEX for web color codes, RGB for on-screen numeric values, and HSL for adjusting hue, saturation, and lightness.
- Enter a value to analyzeHEX can be entered with or without the #. RGB values range from 0 to 255, and HSL S and L range from 0 to 100.
- Check results in all 3 formatsIf opacity is included, it is shown as 8-digit HEX and CSS slash syntax.
- Choose Color Scheme CandidatesTap a candidate color to re-analyze using that color as the new base color.
- Check contrast with background colorBody text should generally be at least 4.5:1, and do not rely on color alone for information.
Steps to extract main colors from an image
- Choose an image from your deviceSupports PNG, JPEG, WebP, GIF, and BMP files up to 25MB. For animated GIFs, the first frame is used.
- Click the image if neededCheck the exact color of a specific spot, such as a logo, clothing, or background, first.
- Choose number of colorsAim for 3–5 colors for logos and 6–10 for photos. Increasing the number of colors too much results in similar colors being listed.
- Extract main colorsReduces the image to a lighter resolution and clusters up to about 14,000 pixels.
- Save as CSS, JSON, or PNGFor web development, CSS is suitable; for analysis and reuse, JSON; for shared materials, PNG is appropriate.
Difference between HEX, RGB, HSL
| Format | Example | Features | Primary Uses |
|---|---|---|---|
| HEX | #087F72 | Express RGB as short hexadecimal | CSS, design specs, and brand colors |
| RGB | rgb(8 127 114) | Express red, green, blue from 0 to 255 | Image processing, Canvas, and color value checks |
| HSL | hsl(174 88% 26%) | Adjust hue, saturation, and lightness separately | Brightness variations, color schemes, theme design |
| Alpha | 80%／CC | Express opacity as 0–100% or 00–FF | Overlays, backgrounds, shadows, and overlays |
Search color names and review close matches
Search localized names, CSS keywords such as midnightblue, HEX values, or broad color families. Exact CSS matches are labeled separately from visually close candidates calculated in the Oklab color space.
Color names vary between industries, countries, print materials, and product catalogs. Use HEX or RGB in final specifications; treat a name such as “khaki” only as a convenient reference.
Accuracy and limits of image palette extraction
This tool groups pixels in the image by color distance and calculates the center color and proportion of each group. This design is better at consolidating JPEG compression and fine photographic gradients than simply counting the most frequent exact color matches.
On the other hand, it is not an AI that understands the meaning or subject of a photo to choose colors. Small logo colors, thin text, and small accent colors may not be included in the main colors. In that case, click directly on the image to pick the color. On-screen colors may appear differently depending on monitor settings, color profiles, and browsers.
How to read contrast ratio
For normal-sized text, a contrast ratio of at least 4.5:1 against the background is recommended, and for large text, at least 3:1, as per WCAG AA. Combinations where the brightness is similar, even if the hue difference is large, such as white text on vivid yellow, are hard to read.
Logos, decorations, and incidental text in photos have different treatments, but ensure ample contrast for important information such as body text, buttons, and input labels. For gradients or photo backgrounds, the ratio varies by location, so check even the hardest-to-read positions.
How to use complementary, analogous, and triadic colors
| Color Scheme | Composition | Recommended Uses | Note |
|---|---|---|---|
| Complementary Color | Opposite on Color Wheel | CTA, warnings, strong accents | Equal areas can be visually intense |
| Analogous Colors | Base color ±30° | Cohesive backgrounds and documents | Check contrast with text separately |
| Triadic | 3 colors at 120° intervals | Categorized, charts, and bright design | Assign roles: one main color, two supporting |
| Split-Complementary | Two Colors Adjacent to Complement | Softer accent than complementary | Don’t make saturation too uniform |
Processing without sending image or color data
Image loading, resizing, pixel retrieval, clustering, color conversion, contrast calculation, and CSS, JSON, and PNG creation are all done within the browser. Image files and extracted colors are not sent to WiseChecker’s servers, external APIs, or generative AI.
‘Pick color from screen’ uses the EyeDropper API provided by supported browsers. Only one permitted color is received from the browser, and the entire screen image is not saved or transmitted. Reloading the page clears the loaded image and results.
Frequently asked questions about color picker and palette extraction
Is my image uploaded to a server?
No. It is loaded and processed in the browser’s Canvas.
Can I extract colors from a transparent PNG?
Yes. Pixels with low opacity are excluded from the main color aggregation, and clicking to pick a color returns RGBA values.
Logo colors not extracted from photo
Colors with small areas may not become main colors. Click directly on the logo area.
What is the 8th digit in HEX?
The last two digits are opacity. 00 is fully transparent, FF is fully opaque.
Are the displayed color names official?
Distinguish between exact matches with CSS standard colors and representative color names that are visually close. Since color names can differ even with the same name depending on field, country, printed material, and product, please also include HEX or RGB for accurate specification.
Why does selecting khaki give a color close to yellow?
The CSS keyword khaki is #F0E68C. Product, clothing, paint, and print catalogs may use the same name for different colors, so specify HEX or RGB.
Does contrast checking alone ensure accessibility?
No. Clues other than color, such as text size, focus indicators, and reading order, are also necessary.
Can I use extracted colors commercially?
Separate from the color codes themselves, check the rights and usage terms of the original image, logo, and brand guidelines.