A vivid medium teal, black text passes AA

What color is darkcyan?

darkcyan is a vivid medium teal: #008b8b in hex, rgb(0 139 139). Black text on it reaches 5.07:1, passing WCAG AA. Recolor (recolor.page) shows it on a real page below.

Last updated

#008b8bdarkcyan
The keyword's value in CSS Color 4 (culori's list of named colors), converted with Recolor's color code, October 9, 2026
FormatValue
Keyworddarkcyan
Hex#008b8b
RGBrgb(0 139 139)
HSLhsl(180 100% 27%)
OKLCHoklch(57.7% 0.098 194.8)
Nearest Tailwind colorteal-600 #009689, 0.035 away in OKLab
White text4.15:1: AA fails, AAA fails, large text passes
Black text5.07:1: AA passes, AAA fails, large text passes

About darkcyan

A vivid medium teal is the plain description of darkcyan: OKLCH lightness 57.7%, chroma 0.098, hue 194.8 degrees.

HSL puts its lightness at 27% and OKLCH at 57.7%, 30 points apart: HSL's lightness does not follow what the eye sees, OKLCH's is built to. The closest CSS named color is teal (#008080), 0.034 away in OKLab: near, and still a visible step from it side by side.

Black text on darkcyan reaches 5.07:1, enough for WCAG AA body text but short of AAA's 7:1; white text gets 4.15:1. In the hue-sorted table of named colors it sits between cadetblue and teal.

In Tailwind CSS 4.3.3 the nearest default color is teal-600 (#009689), 0.035 away in OKLab; for the exact color, an arbitrary value such as bg-[#008b8b] works.

Tints and shades

  1. #dcebeb
  2. #b9d8d7
  3. #96c4c4
  4. #71b1b0
  5. #499e9d
  6. #008b8b
  7. #006c6c
  8. #004e4e
  9. #003232
  10. #001919
  11. #000404

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. #008b8b
  2. #f8dbff
  3. #30271d
  4. #b1d2d2
  5. #69517a

Recolor's generator, with darkcyan locked as swatch 1 and the seed taken from its hex, drew a triadic palette, three hues a third of the wheel apart: #f8dbff, #30271d, #b1d2d2, #69517a. Open it in Recolor.

Using darkcyan

As a text color, darkcyan on a black page gives the same 5.07:1.

CSS
.notice {
  background-color: darkcyan; /* #008b8b */
  color: black; /* 5.07:1 */
}

Common questions

Does white text pass WCAG AA on darkcyan?

No. White text measures 4.15:1 on darkcyan, under AA's 4.5:1; black text measures 5.07:1 and passes.

Can darkcyan be written in OKLCH?

Yes: oklch(57.7% 0.098 194.8), computed from #008b8b. A named color is an sRGB color, so its OKLCH value converts back to the same hex.

Is there a named color close to darkcyan?

Yes: teal (#008080) is the nearest, 0.034 away in OKLab, then seagreen at 0.077.

Sources