Color converter & WCAG contrast
Convert a color between HEX, RGB, HSL, HSV and CMYK and, given a background, compute the WCAG 2.x contrast ratio with AA/AAA pass flags; without background, suggests black or white text.
Offering
- Provider
- api.vextorium.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- General Utilities
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://api.vextorium.com/v1/color-contrast- MIME type
- application/json
- First seen
- 2026-10-16T01:51:10.599Z
- Last seen
- Tags
- color, Accessibility, WCAG, design, contrast
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 0.003 USDC
Atomic price: 3000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact - Payment option 3
- 2310 atomic units
Atomic price: 2310 · Network: xrpl:0 · Asset: XRP · Scheme: exact - Payment option 4
- 0.003 USDC
Atomic price: 3000 · Network: eip155:137 · Asset: USDC · Scheme: exact - Payment option 5
- 0.003 USDC
Atomic price: 3000 · Network: eip155:10 · Asset: USDC · Scheme: exact - Payment option 6
- 3000 atomic units
Atomic price: 3000 · Network: eip155:5042 · Asset: 0x3600000000000000000000000000000000000000 · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "3000",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "3000",
"payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2"
},
{
"scheme": "exact",
"network": "xrpl:0",
"asset": "XRP",
"amount": "2310",
"payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp"
},
{
"scheme": "exact",
"network": "eip155:137",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "3000",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
},
{
"scheme": "exact",
"network": "eip155:10",
"asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
"amount": "3000",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
},
{
"scheme": "exact",
"network": "eip155:5042",
"asset": "0x3600000000000000000000000000000000000000",
"amount": "3000",
"payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf"
}
]Observed health
- Status
- Healthy
- Latest latency
- 406 ms
- Average latency
- 680 ms
- HTTP status
- 200
- Last checked
- Reachability
- 100% over 7 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"POST"
]
},
"bodyType": {
"type": "string",
"enum": [
"json",
"form-data",
"text"
]
},
"body": {
"properties": {
"color": {
"type": "string",
"description": "#RRGGBB, #RGB, rgb() or hsl()"
},
"fund": {
"type": "string",
"description": "Background color (optional)"
}
},
"required": [
"color"
]
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"additionalProperties": false
}Output schema
{
"type": "object",
"properties": {
"type": {
"type": "string"
},
"example": {
"type": [
"object",
"null"
],
"properties": {
"color": {
"type": [
"object",
"null"
],
"properties": {
"hex": {
"type": [
"string",
"null"
]
},
"rgb": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"hsl": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"hsv": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"cmyk": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"luminance": {
"type": [
"number",
"null"
]
}
}
},
"fund": {
"type": [
"object",
"null"
],
"properties": {
"hex": {
"type": [
"string",
"null"
]
},
"rgb": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"hsl": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"hsv": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"cmyk": {
"type": [
"array",
"null"
],
"items": {
"type": [
"null",
"number"
]
}
},
"luminance": {
"type": [
"number",
"null"
]
}
}
},
"contrast": {
"type": [
"object",
"null"
],
"properties": {
"ratio": {
"type": [
"number",
"null"
]
},
"normal_text_AA": {
"type": [
"boolean",
"null"
]
},
"grande_text_AA": {
"type": [
"boolean",
"null"
]
},
"normal_text_AAA": {
"type": [
"boolean",
"null"
]
},
"grande_text_AAA": {
"type": [
"boolean",
"null"
]
},
"ui_components": {
"type": [
"boolean",
"null"
]
}
}
}
}
}
},
"required": [
"type"
]
}