Colour Contrast Minimum Ratio for Compliance Marking
Regulation AODA + OHSA + Transport Canada ยท Canada
ยงThe Law
AODA + OHSA + Transport Canada โ Regulation AODA + OHSA + Transport Canada
โCompliance markings must achieve sufficient luminance contrast between the characters and background to be legible under the required viewing conditions.โ
View official regulation textโPlain English
70% luminance contrast is the AODA standard; Transport Canada and MTO require contrast sufficient for roadside readability. White on black achieves 100%.
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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
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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
- ๐จ๐ฆ 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 โ the moment text changes, a replacement ships to you at $0.
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Compliance Certificate
Every order includes a printable Certificate of Material Compliance โ ready for MTO, Transport Canada, or fire marshal inspection.
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