The Luminosity ratio of the "Today", "This Week" and "All time" button is less than 4.5:1.

[billycamp]

Category: Visual Requirements
MAS Rule: MAS1.4.3
Repro Steps

1. Launch Embedded Social Test App.
2. Navigate to Hamburger button and double tap.
3. Navigate to hamburger button and double tap.
4. Navigate to the Popular link and double tap.
5. Popular page will be appear.
6. Verify that the luminosity ratio of the Today, This Week and All time button is less than 4.5:1.
   Expected:
   The luminosity ratio of the Today, This Week and All time button should be greater than or equal to 4.5:1.
   Actual:
   The luminosity ratio of the Today, This Week and All time button is less than 4.5:1.

Note :
1> Same issue is repro throughout application for this color.
2> Luminosity ratio is less than 4.5:1 for many other different other elements texts and icons. (see attachment)
Test Environment:
OS: iOS 11.0.2
App: Embedded Social Test
App Version: 0.7.8 (8)
Tools: CCA