Adjust a text color's lightness just enough to reach a WCAG contrast target (4.5...
https://color-design.x402tookit.com/contrast-fixOverview
Adjust a text color's lightness just enough to reach a WCAG contrast target (4.5, 3 or 7) on a background, keeping its hue.
Protocol
x402
Price
$0.02
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Color and Design Tools
Source
bazaar
Indexed
2026-10-20 21:22:49
Health
Status
healthy
Latency (p50)
549ms
Uptime (30d)
86.7%
Reliability Score
83.3/100
Last Checked
2026-10-28 06:39:22
Last Healthy
2026-10-28 06:39:22
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"background": "ffffff",
"foreground": "ffcc00",
"target": 4.5
},
"type": "http"
}
Output Schema
{
"example": {
"asOf": "2026-10-11T04:02:41.011Z",
"background": "#ffffff",
"contrastAfter": 4.59,
"contrastBefore": 1.512,
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"fixed": "#8f7200",
"lightnessShift": 22,
"notChecked": [
"brand guidelines",
"non-text contrast",
"…1 more"
],
"original": "#ffcc00",
"reasons": [
"Same hue and saturation; only lightness changes, in the direction that increases contrast."
],
"source": "computed locally",
"summary": "Use #8f7200 instead of #ffcc00: contrast 1.51:1 becomes 4.59:1 (target 4.5:1), lightness moved 22 points.",
"target": 4.5,
"verdict": "FIXED"
},
"type": "json"
}