Colour Contrast Minimum Ratio for Compliance Marking
Regulation AODA + OHSA + Transport Canada · Canada
§The Law
AODA + OHSA + Transport Canada — Regulation AODA + OHSA + Transport Canada
“Compliance markings must achieve sufficient luminance contrast between the characters and background to be legible under the required viewing conditions.”
View official regulation text✓Plain English
70% luminance contrast is the AODA standard; Transport Canada and MTO require contrast sufficient for roadside readability. White on black achieves 100%.
Ready to Order?
Get compliant compliance materials standards markings — from $29.99. Ships same day.
Specific Requirements
70% minimum luminance contrast (AODA)
High contrast for vehicle markings
Calculate using WCAG 2.1 contrast ratio formula
White or yellow on dark, dark on light
Get Compliant
Order Your Compliance Materials Standards Compliance Marking
Same-day production. 7-year outdoor vinyl. Ships Canada-wide.
Shop Compliant Vinyl MaterialsOr call (289) 228-7021Regulation Quick Facts
- Regulation
- AODA + OHSA + Transport Canada
- Jurisdiction
- 🇨🇦 Canada
- Category
- Compliance Materials Standards
What if AODA + OHSA + Transport Canada changes next year?
Laws change. When they do, your decal becomes non-compliant overnight. Annual Compliance Plan monitors 150+ Canadian regulations weekly — the moment text changes, a replacement ships to you at $0.
- Free replacement decals when laws change
- 52× weekly statute scans all year
- Digital Compliance Vault for inspections
- Smart Decal QR verification
Compliance Certificate
Every order includes a printable Certificate of Material Compliance — ready for MTO, Transport Canada, or fire marshal inspection.
View sample certificate →