Tailwind CSS v3 color

Tailwind teal-400 #2DD4BF

Tailwind CSS v3's teal-400 is #2DD4BF. It is a light soft cyan in the cyan family. In OKLCH it sits at lightness 0.785, chroma 0.133 and hue 181.9°. The nearest CSS named color is turquoise (#40E0D0), ΔE2000 3.5 away.

Relative luminance
0.5141
OKLCH L · C · h
0.785 · 0.133 · 181.9
Best text
Black 11.28:1
Hue family
Cyan
Inspect this color Check contrast

#2DD4BF color codes

HEX
#2DD4BF
RGB
rgb(45, 212, 191)
HSL
hsl(172, 66%, 50%)
OKLCH
oklch(0.785 0.133 181.9)
OKLab
oklab(0.785 -0.132 -0.004)
CIELAB (D65)
L* 76.92, a* -45.50, b* -1.36
XYZ (D65)
X 34.02, Y 51.40, Z 57.41
CMYK (naive)
cmyk(79%, 0%, 10%, 17%)

CIELAB and XYZ use the D65 white point; CSS lab() uses D50, so paste the OKLCH or HEX value into stylesheets. CMYK here is a plain formula with no press profile.

Legibility

Contrast: is #2DD4BF accessible?

Black text on it reaches 11.28:1, passing AAA. White text fails at 1.86:1.

WCAG 2 gives the same ratio whichever color is the text; APCA does not, so its Lc changes sign and size with polarity.

Open the Contrast System

  • Black text on it

    11.28:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +69

  • White text on it

    1.86:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −38

  • As text on black

    11.28:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −67

  • As text on white

    1.86:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +34

Nearest versions that pass 4.5:1

  • For text on white

    #008577 4.54:1

    Darkening its OKLCH lightness from 0.78 to 0.55 reaches 4.54:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #2DD4BF 11.28:1

    It already reaches 11.28:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #2DD4BF live

Move lightness, chroma and hue in OKLCH, or drag on the map. The map is every lightness and chroma at the current hue: sRGB inside the solid area, Display P3 out to the dashed line.

The studio needs JavaScript.

Scale

Shades and tints of #2DD4BF

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #2DD4BF sits at step 300.

  1. 50#D7FFF7
    White
    1.07
    Black
    19.53
  2. 100#A7FFEF
    White
    1.15
    Black
    18.19
  3. 200#72F1DD
    White
    1.36
    Black
    15.34
  4. 300This color#2DD4BF
    White
    1.86
    Black
    11.28
  5. 400#00BBA7
    White
    2.42
    Black
    8.66
  6. 500#009B8B
    White
    3.46
    Black
    6.06
  7. 600#008173
    White
    4.78
    Black
    4.38
  8. 700#00675B
    White
    6.79
    Black
    3.09
  9. 800#004B42
    White
    10.07
    Black
    2.08
  10. 900#00312B
    White
    14.24
    Black
    1.47
  11. 950#001B17
    White
    17.96
    Black
    1.16

Under each step, white and black text on it; a bold figure passes 4.5:1.

Tailwind CSS v3 teal scale

The real Tailwind palette, for comparison with the computed ramp above.

  1. 50#F0FDFA
    White
    1.04
    Black
    20.13
  2. 100#CCFBF1
    White
    1.12
    Black
    18.63
  3. 200#99F6E4
    White
    1.26
    Black
    16.65
  4. 300#5EEAD4
    White
    1.47
    Black
    14.19
  5. 400This color#2DD4BF
    White
    1.86
    Black
    11.28
  6. 500#14B8A6
    White
    2.48
    Black
    8.43
  7. 600#0D9488
    White
    3.74
    Black
    5.60
  8. 700#0F766E
    White
    5.47
    Black
    3.83
  9. 800#115E59
    White
    7.58
    Black
    2.76
  10. 900#134E4A
    White
    9.47
    Black
    2.21
  11. 950#042F2E
    White
    14.47
    Black
    1.45

Gamut

How vivid #2DD4BF can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.141; #2DD4BF uses 94% of it. Display P3, which many recent phones and laptops show, reaches 0.190 there: 35% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.133
sRGB edge
0.141
Display P3 edge
0.190
Rec. 2020 edge
0.304
Dominant wavelength
497 nm
Excitation purity
25%
Chromaticity
x 0.2382, y 0.3599
  • This color#2DD4BF
  • Most vivid in sRGB#00D5BF
  • Most vivid in Display P3oklch(0.785 0.190 181.9)

On a screen without Display P3 the last tile shows the sRGB edge instead.

Use the wider color where screens show it
.accent {
  color: #2dd4bf;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0 0.8549 0.7612); }
}

Mixing

Mixing #2DD4BF

Each row is the same mix worked out in a different space, with the halfway color at its end. sRGB, which older CSS gradients use, can sag gray or dark in the middle; OKLab keeps the lightness steps even; OKLCH holds chroma and hue as it goes.

White #FFFFFF

  • sRGB50%#96EADF
  • OKLab50%#ABEADF
  • OKLCH50%#ABEADF

Black #000000

  • sRGB50%#176A60
  • OKLab50%#0B5148
  • OKLCH50%#0B5148

Its complement #FE93B2

  • sRGB50%#96B4B9
  • OKLab50%#B9B9B8
  • OKLCH50%#D7B647
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #2dd4bf, white);
color: color-mix(in oklch, #2dd4bf 50%, white);

In use

#2DD4BF in an interface

A button, a link, a heading, a focused field, an icon and a chart line in this color, on a light page and a dark one. Each check is a WCAG 2 contrast minimum: 1.4.3 for text, 1.4.11 for the rest.

Light page

  • Button labelText, 4.5:111.28:1 Passes
  • Link and body-size textText, 4.5:11.86:1 Fails
  • Large headingLarge text, 3:11.86:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.86:1 Fails

For text on this page, the nearest shade that passes is #008577 4.54:1

Dark page

  • Button labelText, 4.5:111.28:1 Passes
  • Link and body-size textText, 4.5:110.06:1 Passes
  • Large headingLarge text, 3:110.06:1 Passes
  • Icons, borders and focus ringsNon-text, 3:110.06:1 Passes

Color vision

How #2DD4BF looks with color blindness

Deuteranopia changes it most, ΔE2000 25.9; tritanopia changes it least, 3.5.

Simulated with Machado et al. (2009) at full severity, in linear light.

Simulate a whole page What each type sees

  • Protanopia

    No working red (long-wavelength) cones

    #CAC7BE ΔE2000 24.8

    Distinct

    Reads as light gray

  • Deuteranopia

    No working green (medium-wavelength) cones

    #B4B7C1 ΔE2000 25.9

    Distinct

    Reads as light gray

  • Tritanopia

    No working blue (short-wavelength) cones

    #00D8CD ΔE2000 3.5

    Close match

    Reads as light soft cyan

  • Achromatopsia

    No cone color vision; lightness only

    #BEBEBE ΔE2000 24.6

    Distinct

    Reads as light gray

Pairing check

Checked against its complement, #FE93B2. Their lightness contrast is only 1.12:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#2DD4BF · #FE93B263.0Stays distinct
Protanopia#CAC7BE · #A3A7B313.7Stays distinct
Deuteranopia#B4B7C1 · #BEBBB010.7Stays distinct
Tritanopia#00D8CD · #FF8B9E62.0Stays distinct
Achromatopsia#BEBEBE · #B3B3B32.9Easily confused

Harmony

Color harmonies for #2DD4BF

Its complement is #FE93B2, a light soft pink, on the warm side of the wheel.

Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.

Open the Harmony Studio
  • Base#2DD4BF
  • Complement#FE93B2

Complementary

Open in Harmony Studio
  • −30°#72D18E
  • Base#2DD4BF
  • +30°#1FCFEA

Analogous

Open in Harmony Studio
  • Base#2DD4BF
  • +120°#C8A4FF
  • +240°#F5A458

Triadic

Open in Harmony Studio
  • Base#2DD4BF
  • +150°#EA98DF
  • +210°#FF9985

Split-complementary

Open in Harmony Studio

Code

Design tokens

Ready-to-paste tokens in six formats. Rename them to fit your system.

CSS custom property

:root {
  --color-teal-400: #2dd4bf;
}

Tailwind config

// tailwind.config.js — already built in as teal-400;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        teal: { 400: '#2dd4bf' },
      },
    },
  },
};

Tailwind v4 theme

/* app.css — Tailwind CSS v4 */
@import "tailwindcss";

@theme {
  /* v4 has its own teal-400; this pins the v3 value. */
  --color-teal-400: oklch(0.785 0.133 181.9);
}

Design token (W3C DTCG)

{
  "color": {
    "teal-400": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.1765, 0.8314, 0.749],
        "hex": "#2dd4bf"
      },
      "$description": "Tailwind CSS v3 teal-400"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let teal400 = Color(.sRGB, red: 0.176, green: 0.831, blue: 0.749, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Teal400 = Color(0xFF2DD4BF)
}

Matches

The nearest match in each system

The closest CSS name, Tailwind shade, RAL Classic paint and Crayola crayon by ΔE2000; under 2 is hard to tell apart side by side. RAL and Crayola values approximate physical colors.

Neighbors

The eight nearest colors on this site by ΔE2000, closest first. Under 2 is hard to tell apart side by side.

Tools

Open #2DD4BF in the tools

Each opens over this page. More colors live in the Color Library, and every color page is listed on the hub.