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Typography

Follow these font guidelines when representing HelloTalk across different channels and touchpoints.

Our Type

Roman alphabet / Arabic / Cyrillic

Font use changes based on writing language:

For Roman alphabet, Arabic, and Cyrillic:

Headers: Gellix is used sparingly and is reserved for standout text such as titles

Body text: SF Pro (in-app) and Inter (external)

For Korean, and Chinese and Japanese characters use HarmonyOS Sans SC

Gellix

Headlines / Accent typography

Inter

Product UI & long-form text

HarmonyOS

Headlines / Accent typography

Typography overview

Using Gellix

  • Use Gellix Bold for writing titles in English and other languages that use the roman alphabet.
  • Line spacing: 1/2 of the font height.
  • Letter spacing: Use 2% letter spacing.
Gellix usage

Using Inter

  • Use Inter Medium for subheadings and all body text. This applies to English and all other languages that are written using the roman alphabet.
  • Line spacing: Set to 130%. Gradually decrease line spacing as font size increases.
  • Letter Spacing: Set to 0%.

Moments

Moments are public posts that let you engage with the entire community. Share an update or ask a question about language, culture, or travel for native speakers to see and comment on.

Using HarmonyOS Sans

  • Use HarmonyOS for Chinese, Japanese, and Korean.
  • Title line spacing: 1/3 of the font height.
  • Text line spacing: Set line spacing to 140%. Decrease the line spacing as the text size increases.
  • Letter spacing: Set to 2%
HarmonyOS Sans usage

Please don’t

  • Use multiple fonts of different weights in the same sentence.
  • Keep too much spacing between words in a title or paragraph.
  • Use overly narrow letter spacing.
  • Use too much line spacing between sentences.
  • Do not use a font height ratio between the main text and the title that deviates significantly from 1:3.
  • Don't use Medium weight for titles, and bold weight for paragraphs.
  • Don't use more than two colors for titles and paragraphs.
Typography cautions