Contrast grid

Each cell is one colour as text on another. Ratios under 3:1 fail for any text size.

Text ↓ on background →
Harbour
Verdigris
Mustard
Coral
Paper
White
White
Obsidian
Harbour
—
2.96:1
Fail
7.14:1
Pass
4.5:1
Fail
10.62:1
Pass
11.98:1
Pass
11:1
Pass
1.48:1
Fail
Verdigris
2.96:1
Fail
—
2.41:1
Fail
1.52:1
Fail
3.59:1
Fail
4.05:1
Fail
3.72:1
Fail
4.38:1
Fail
Mustard
7.14:1
Pass
2.41:1
Fail
—
1.59:1
Fail
1.49:1
Fail
1.68:1
Fail
1.54:1
Fail
10.57:1
Pass
Coral
4.5:1
Fail
1.52:1
Fail
1.59:1
Fail
—
2.36:1
Fail
2.66:1
Fail
2.44:1
Fail
6.66:1
Pass
Paper
10.62:1
Pass
3.59:1
Fail
1.49:1
Fail
2.36:1
Fail
—
1.13:1
Fail
1.04:1
Fail
15.73:1
Pass
White
11.98:1
Pass
4.05:1
Fail
1.68:1
Fail
2.66:1
Fail
1.13:1
Fail
—
1.09:1
Fail
17.74:1
Pass
White
11:1
Pass
3.72:1
Fail
1.54:1
Fail
2.44:1
Fail
1.04:1
Fail
1.09:1
Fail
—
16.29:1
Pass
Obsidian
1.48:1
Fail
4.38:1
Fail
10.57:1
Pass
6.66:1
Pass
15.73:1
Pass
17.74:1
Pass
16.29:1
Pass
—