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ColorWell · contrast check

White or black text on #1da1f2?

the classic Twitter blue

Use black text. It gives 7.43:1, which passes AAA (and AA).

White text
2.83:1
fails AA
Black text
7.43:1
passes AAA (and AA)

What the thresholds mean

LevelNeedsWhite textBlack text
AA, normal text4.5:1failpass
AA, large text (18pt+/14pt bold)3:1failpass
AAA, normal text7:1failpass

If you need the other one to pass

Same hue, moved along the lightness ramp until the ratio clears AA.

The colour itself

Shade ramp

#bff9ff #9fe7ff #76cdff #41adf9 #0087da #0068af #004b85 #00305e #001639

Paste this into your config

// tailwind.config.js
colors: {
  brand: {
    100: "#bff9ff",
    200: "#9fe7ff",
    300: "#76cdff",
    400: "#41adf9",
    500: "#0087da",
    600: "#0068af",
    700: "#004b85",
    800: "#00305e",
    900: "#001639",
  },
}

Text colour to pair with the 500 shade (#0087da): black, at 5.48:1. For #1da1f2 itself it is black, at 7.43:1.

Your own colours, the same way

Paste any hex and get this page for it live — ratio, verdict, ramp. Export the whole palette to CSS variables, a Tailwind config or Figma tokens when you want it in the project rather than on the screen.

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