JLA Badge Usage Guidelines

1. Purpose

The JLA badge is not an official certification mark, but rather an indication to assist self-declaration based on voluntary guidelines established by the Japan Layout Alliance (JLA), a private organization.

We are not affiliated with any official standard or certification system such as JIS (Japanese Industrial Standards) or JISC (Japanese Industrial Standards Committee).

The JLA badge is designed to assist in external representation based on self-declaration of the compatibility class JLA-450 / JLA-425 for the bottom row of Japanese keyboard layouts.

2. Terms of Use

• May be used on product pages dealing with your company’s products. (Cannot be distributed or sold to third parties).
• It is recommended that product pages clearly indicate information (product name and model number) that identifies the subject product.
  • Product page” means a public page on which a third party can check information about the product, regardless of the platform on which the product is listed (e.g., in-house e-commerce, e-commerce mall, crowdfunding, etc.).
    (e.g., official website, in-house e-commerce, product pages on Amazon/ Rakuten market, etc., crowdfunding project pages, product pages of authorized distributors, etc.)
• Only use badges that match the class designation. (e.g., a JLA-425 badge is not allowed for JLA-450 products).
• Color modification, aspect ratio changes, or deletion/combination of elements are not allowed. (Only size changes are permitted).
• If possible, link the badge or text notation to the JLA page.

3. Credits

• No copyright notice is required on the badge image itself.
• If necessary, please include “JLA Badge © Greenkeys / GreenEchoes Studio” at the bottom of the page (optional).
• If possible, please insert a link to the top of the JLA page in the “JLA Badge © Greenkeys / GreenEchoes Studio” section.

https://green-keys.info/japan-layout-alliance

JLA compliant labeling (recommended format)

For the purposes of this guideline, the following format is recommended as an example of the display on a product page

This product follows
Japan Layout Alliance (JLA) guidelines and is JLA-xxx compatible.
(e.g. 4.25u space bar compatible = JLA-425)

JLA-xxx codes mean compatible classes in the JLA definition.

4. Prohibitions

• Uses that are false or misleading.
• Use with media that violates public order and morals, or with illegal content.
• Expressions that imply JLA or Greenkeys guarantees product quality.

5. Revocation

If false representation or a guideline violation is confirmed, we will suspend publication and revoke usage permission at our discretion.

6. Downloads

• JLA-450: PNG/SVG (white/black)
• JLA-425: PNG/SVG (white/black)
• JLA-450/425 (both supported): PNG/SVG (white/black)

Badge Usage Details

Color / Background

• Basic colors: Black (for light backgrounds) / White (for dark backgrounds)
• Background must be solid color or low-noise photo. Contrast ratio of at least 8:1 is recommended.
• Color inversion allowed: Only black⇔white inversion permitted. No arbitrary coloring or gradients.
• Transparent version (SVG) only as provided. No borders or drop shadows may be added.

Terms and Conditions

OK	NG
Use in official black/white colors Use at minimum size or larger Background is solid color or low-noise with sufficient contrast	Color changes, shadows, borders, gradients, aspect ratio stretching Rotation, tilting, flipping (horizontal flip) Merging with other logos, iconification, text replacement

Link Settings (Recommended)

Always set the click destination link to JLA Top Page.

Accessibility

• Alt text: alt="JLA-450/425 Badge" recommended
• Link elements should include aria-label="JLA TOP" recommended

Version: 1.2 ｜ Last updated: 2025-11-18

Japan Layout Alliance (JLA) is a private voluntary organization that is not affiliated with JIS (Japanese Industrial Standards), JISC, or any Japanese government agency, which are official standards. The guidelines shown on this page are only voluntary proposals to support the improvement of Japanese keyboard compatibility, and have no force or effect as an official certification.