Brand guidelines
This page collects the ExpTech Studio logo files, usage, colors, and fonts. Write the English name as ExpTech Studio (short name: ExpTech). The Chinese name is 探索科技.
Horizontal logo
The chip mark with the ExpTech Studio lettering. Use the transparent version on light backgrounds and the white-background version on dark backgrounds.
Square icon
Comes with its own dark gray background, so it stays clear on light and dark backgrounds. It's the icon at the top left of this site's navigation bar.
Favicon
The chip mark only, on a transparent background. Use it at small sizes, such as browser tabs. Shown below at actual size.
You can download the original file under each preview. Only raster images are available (WebP and ICO). There is no vector file. If you need a vector file or another size, contact us.
Clear space
Section titled “Clear space”
Keep at least a margin of x around the logo. x is 20% of H, the height of the logo artwork. The horizontal logo files already include enough margin. Using the whole image, without cropping it further, meets the requirement.

DoUse the transparent version on light backgrounds

DoUse the white-background version on dark backgrounds, and keep the white plate

Don'tStretch or squash it out of its original proportions

Don'tChange the logo colors

Don'tAdd effects such as shadows or outlines

Don'tPlace it on a busy background

Don'tPlace the transparent version directly on a dark background
Keep the original proportions and colors. Do not add effects, and do not place it on a busy background. There is no version with light-colored lettering yet. On a dark background, use the white-background version or the square icon.
The primary brand color is violet, with a cool neutral gray. Light mode and dark mode each have their own values. The values below stay in sync with the site styles. Click a value to copy it.
Semantic colors
Section titled “Semantic colors”Brand primary
--primaryLight modeDark modeText on primary
--primary-foregroundLight modeDark modeBackground
--backgroundLight modeDark modeCard
--cardLight modeDark modeText
--foregroundLight modeDark modeSecondary text
--muted-foregroundLight modeDark modeBorder
--borderLight modeDark modeError and danger
--destructiveLight modeDark mode
Colors marked ≈ are outside the sRGB gamut, so the HEX value is the closest approximation. Use OKLCH when you need exact colors.
On the web, use CSS variables (for example var(--primary)). Do not hard-code color values, so light and dark mode can switch on their own. Text and background need enough contrast to meet the WCAG accessibility standard.
Color scales
Section titled “Color scales”Violet scale--color-accent-*
- 50
- 100
- 200
- 300
- 400
- 500
- 600
- 700
- 800
- 900
- 950
Neutral gray scale--color-gray-*
- 50
- 100
- 200
- 300
- 400
- 500
- 600
- 700
- 800
- 900
- 950
Colors marked ≈ are outside the sRGB gamut, so the HEX value is the closest approximation. Use OKLCH when you need exact colors.
Tailwind accent-* (for example bg-accent-600) and gray-* map to these two scales.
- Real-time earthquake monitoring
- ExpTech Studio 探索科技
- Get earthquake reports, real-time station data, and SSE real-time streams from the ExpTech API.
- 地震報告、即時測站資料與 SSE 即時串流,都可以透過 ExpTech API 取得。
- The quick brown fox jumps over the lazy dog. 0123456789
curl -sL "https://api.core.exptech.dev/api/v2/eq/report?limit=5"
- Traditional Chinese and English pages
Plus Jakarta Sans VariablePlus Jakarta SansPingFang TCNoto Sans TCMicrosoft JhengHeiui-sans-serifsystem-uisans-serif- Japanese pages
Plus Jakarta Sans VariablePlus Jakarta SansHiragino SansNoto Sans JPYu Gothicui-sans-serifsystem-uisans-serif- Code
ui-monospaceSFMono-RegularSF MonoMenloMonacoConsolasLiberation MonoCourier Newmonospace
Latin letters use Plus Jakarta Sans (variable weight 200–800). Chinese and Japanese use the fonts built into each operating system. Code uses the system monospace font.
Permitted use
Section titled “Permitted use”ExpTech Studio brand assets may be used only for the following:
- Official documentation and the website
- Community projects and tutorials
- Non-commercial display
For commercial use or any other special permission, contact us first.

