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A vivid very dark blue, white text passes AA

Tailwind sky-950

In Tailwind CSS 4.3.3, sky-950 is defined as oklch(29.3% 0.066 243.157); in hex that is #052f4a, or rgb(5 47 74). White text on it reaches 13.89:1, passing WCAG AAA, and Recolor (recolor.page) can show it on a real page.

Last updated

#052f4asky-950
From the theme file of Tailwind CSS 4.3.3 (--color-sky-950), converted with Recolor's color code, October 9, 2026
FormatValue
OKLCH, as Tailwind writes itoklch(29.3% 0.066 243.157)
Hex#052f4a
RGBrgb(5 47 74)
HSLhsl(203 87% 15%)
CSS variablevar(--color-sky-950)
Nearest CSS namemidnightblue #191970, 0.093 away in OKLab
White text13.89:1: AA passes, AAA passes, large text passes
Black text1.51:1: AA fails, AAA fails, large text fails

About sky-950

In OKLCH, sky-950 has a lightness of 29.3%, a chroma of 0.066 and a hue of 243.2 degrees, which makes it a vivid very dark blue. Sky-950 is the last and darkest of the eleven sky shades, 9.8 points under sky-900.

Its lightness is 15% in HSL and 29.3% in OKLCH, 14 points apart; only the second tracks how light it looks. The value lies inside sRGB, the gamut of a hex code, so sky-950 converts to #052f4a without losing chroma.

For text, sky-950 wants white: 13.89:1 clears even AAA's 7:1, and black at 1.51:1 fails AA. On the sky scale white text works from sky-700 to sky-950; sky-950 has 3 shades of margin.

No CSS keyword matches it; midnightblue (#191970) is the nearest, 0.093 away in OKLab, a clear step off.

Tints and shades

  1. #d2d9df
  2. #a7b4c0
  3. #7d91a1
  4. #556f83
  5. #2f4e66
  6. #052f4a
  7. #032338
  8. #011727
  9. #010c17
  10. #000308
  11. #000001

From light to dark: 5 toward white and 5 toward black, mixed in OKLCH a sixth of the way at a time with the hue kept. A step that would repeat its neighbor is left out.

A palette around it

  1. #052f4a
  2. #c8acdc
  3. #195773
  4. #ecddca
  5. #b9766b

Locked as the first of five swatches, sky-950 gets #c8acdc, #195773, #ecddca, #b9766b from Recolor's generator, a free palette, hues spread around the wheel. The seed is its hex, so the palette stays the same. Open it in Recolor.

Using sky-950

Pair it with text-white, 13.89:1; sky-950 as text on a white page measures the same ratio. In CSS it is var(--color-sky-950).

HTML
<a class="bg-sky-950 text-white" href="/start">Get started</a>
<p class="text-sky-950">Text in sky-950</p>

Common questions

Does white text pass WCAG AA on Tailwind sky-950?

Yes. White text measures 13.89:1 on sky-950, above the 4.5:1 that WCAG AA asks of body text, and above AAA's 7:1 too.

Is Tailwind sky-950 defined in OKLCH?

Yes. Tailwind CSS 4.3.3 defines it as --color-sky-950: oklch(29.3% 0.066 243.157); #052f4a is its conversion to sRGB.

Is there a CSS named color for Tailwind sky-950?

No. The nearest CSS named color is midnightblue (#191970), 0.093 away in OKLab.

Sources