Discover / color-design.x402tookit.com

Color and Design Tools

■ Challenge detected

Best text color (black or white) for a background hex color, with contrast ratios and WCAG AA/AAA results for both.

Listed price
$0.02
Challenge detected
1 of the last check
Median response
192 ms
Last checked
21 Oct, 00:26 UTC
In our index since
21 Oct 2026

Endpoint

curl -i https://color-design.x402tookit.com/accessible-text-color
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.
8 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://color-design.x402tookit.com

  • GET/color-mixNo price listedMix two hex colors at a ratio in sRGB or in linear light (physically correct), returning the blended hex.
  • GET/palette-generateNo price listedGenerate a color palette from a base hex color: complementary, analogous, triadic, tetradic, split-complementary or monochrome.
  • GET/gradient-stepsNo price listedEvenly spaced color steps between two hex colors, in sRGB or linear light, for charts, heatmaps and gradients.
  • GET/color-blind-simNo price listedSimulate protanopia, deuteranopia and tritanopia on a color, or on a text/background pair with the contrast that remains.
  • GET/color-convertNo price listedConvert a hex color to RGB, HSL, HSV and CMYK with CSS strings and relative luminance, exactly.
  • GET/contrast-fixNo price listedAdjust a text color's lightness just enough to reach a WCAG contrast target (4.5, 3 or 7) on a background, keeping its hue.
  • GET/color-adjustNo price listedLighten, darken, saturate, desaturate or rotate the hue of a hex color by an exact number of HSL points.
  • GET/accessible-text-colorNo price listedBest text color (black or white) for a background hex color, with contrast ratios and WCAG AA/AAA results for both.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 8 of 8 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/color-design.x402tookit.com

Recent checks

21 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.21 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
21 Oct, 00:26 UTCChallenge detected402192ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 21 Oct, 00:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Color and Design Tools?

Its listed price is $0.02.

What payment terms does Color and Design Tools advertise?

The listing advertises x402, Arbitrum, Base, Polygon, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Color and Design Tools listed?

In x402 Bazaar. Superstables first indexed it on 21 Oct 2026.

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