3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

Browser Screen Color DepthbrowserColorDepth

Browser Screen Color Depth in Authentication Request (AReq).

Source edition: Core 2.3.1.1 · Type: String · Length: 1–2 characters; numeric · Minimum length: 1 · Maximum length: 2

Baseline in AReq Conditional

Varies by context. Requirement or applicability varies by channel or message category. Select a specific context to resolve it. Usage and conditions ↓

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Usage in AReq

Value representing the bit depth of the colour palette for displaying images, in bits per pixel. Obtained from the Cardholder Browser using the screen.colorDepth property. Refer to Section A.6 for more details.

Conditional inclusion — source text

Required if Browser JavaScript Enabled = true; otherwise Optional.

Format and scope

Type: String · Length: 1–2 characters; numeric · Minimum length: 1 · Maximum length: 2

Source components: 3DS Server. Channels: 02-BRW. Categories: 01-PA, 02-NPA.

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 213

Related FAQ notes

  • For device values not on the accepted list, use the closest lower value (e.g., 30→24) to avoid errors. DS may optionally auto-correct. v2.3.1+ accepts any value 1-99. — FAQ 13 (EMVCo FAQ)

Transaction context

This reference covers the published source edition. Use the explorer to inspect this field and any applicable transaction conditions. Scheme programme requirements are not inferred from the protocol edition.

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Sources and related references

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 213

Source review status: carried-forward. Carried-forward material has not acquired a new verification claim.

Document fingerprint (SHA-256): 6fdf0aba3fc1a765f96b74dad4069d1e189969f38f0023647021687daf589d6b