Tailwind CSS v3 color

Tailwind teal-900 #134E4A

Tailwind CSS v3's teal-900 is #134E4A. It is a dark muted teal in the cyan family. In OKLCH it sits at lightness 0.386, chroma 0.059 and hue 188.4°. The nearest CSS named color is darkslategray (#2F4F4F), ΔE2000 5.7 away.

Relative luminance: 0.0608
OKLCH L · C · h: 0.386 · 0.059 · 188.4
Best text: White 9.47:1
Hue family: Cyan

Inspect this color Check contrast

#134E4A color codes

HEX: #134E4A
RGB: rgb(19, 78, 74)
HSL: hsl(176, 61%, 19%)
OKLCH: oklch(0.386 0.059 188.4)
OKLab: oklab(0.386 -0.058 -0.009)
CIELAB (D65): L* 29.62, a* -19.45, b* -3.07
XYZ (D65): X 4.23, Y 6.08, Z 7.43
CMYK (naive): cmyk(76%, 0%, 5%, 69%)

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 #134E4A accessible?

White text on it reaches 9.47:1, passing AAA. Black text fails at 2.21:1.

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

2.21:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc +12
White text on it

9.47:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −95
As text on black

2.21:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc −10
As text on white

9.47:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +91

Nearest versions that pass 4.5:1

For text on white

#134E4A 9.47:1

It already reaches 9.47:1 on white, so no change is needed.
For text on black

#487F7A 4.59:1

Lightening its OKLCH lightness from 0.39 to 0.56 reaches 4.59:1 on black, keeping the hue.

Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #134E4A 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 #134E4A

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #134E4A sits at step 800.

50#D6FFFB

White
1.07
Black
19.55
100#C7F6F1

White
1.17
Black
17.88
200#B1E3DE

White
1.40
Black
14.91
300#95CAC4

White
1.82
Black
11.52
400#77AEA8

White
2.49
Black
8.40
500#5B928D

White
3.53
Black
5.94
600#437A75

White
4.90
Black
4.27
700#2D625E

White
6.95
Black
3.02
800This color#134E4A

White
9.47
Black
2.21
900#00302D

White
14.37
Black
1.46
950#001B19

White
17.93
Black
1.17

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.

50#F0FDFA
White
1.04
Black
20.13
100#CCFBF1
White
1.12
Black
18.63
200#99F6E4
White
1.26
Black
16.65
300#5EEAD4
White
1.47
Black
14.19
400#2DD4BF
White
1.86
Black
11.28
500#14B8A6
White
2.48
Black
8.43
600#0D9488
White
3.74
Black
5.60
700#0F766E
White
5.47
Black
3.83
800#115E59
White
7.58
Black
2.76
900This color#134E4A

White
9.47
Black
2.21
950#042F2E
White
14.47
Black
1.45

Gamut

How vivid #134E4A can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.067; #134E4A uses 88% of it. Display P3, which many recent phones and laptops show, reaches 0.091 there: 35% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.059
sRGB edge: 0.067
Display P3 edge: 0.091
Rec. 2020 edge: 0.146
Dominant wavelength: 494 nm
Excitation purity: 26%
Chromaticity: x 0.2384, y 0.3428

This color#134E4A
Most vivid in sRGB#004F4B
Most vivid in Display P3oklch(0.386 0.091 188.4)

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

Use the wider color where screens show it

.accent {
  color: #134e4a;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0 0.3171 0.3014); }
}

Mixing

Mixing #134E4A

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%#89A7A5
OKLab50%#88A3A0
OKLCH50%#88A3A0

Black #000000

sRGB50%#0A2725
OKLab50%#031917
OKLCH50%#031917

Its complement #5F363E

sRGB50%#394244
OKLab50%#444444
OKLCH50%#3C4163

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #134e4a, white);
color: color-mix(in oklch, #134e4a 50%, white);

In use

#134E4A 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, 4.5:19.47:1 Passes
Link and body-size textText, 4.5:19.47:1 Passes
Large headingLarge text, 3:19.47:1 Passes
Icons, borders and focus ringsNon-text, 3:19.47:1 Passes

Dark page

Button labelText, 4.5:19.47:1 Passes
Link and body-size textText, 4.5:11.97:1 Fails
Large headingLarge text, 3:11.97:1 Fails
Icons, borders and focus ringsNon-text, 3:11.97:1 Fails

For text on this page, the nearest shade that passes is #4F8681 4.51:1

Color vision

How #134E4A looks with color blindness

Deuteranopia changes it most, ΔE2000 19.2; tritanopia changes it least, 1.6.

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

#49494A ΔE2000 18.0

Distinct

Reads as dark gray
Deuteranopia

No working green (medium-wavelength) cones

#41434B ΔE2000 19.2

Distinct

Reads as dark gray
Tritanopia

No working blue (short-wavelength) cones

#00504D ΔE2000 1.6

Very close

Reads as dark muted teal
Achromatopsia

No cone color vision; lightness only

#464646 ΔE2000 17.5

Distinct

Reads as dark gray

Pairing check

Checked against its complement, #5F363E. Their lightness contrast is only 1.06:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#134E4A · #5F363E	42.4	Stays distinct
Protanopia	#49494A · #3D3D3E	4.0	Easily confused
Deuteranopia	#41434B · #47453D	9.8	Harder to tell apart
Tritanopia	#00504D · #663239	42.4	Stays distinct
Achromatopsia	#464646 · #424242	1.3	Easily confused

Harmony

Color harmonies for #134E4A

Its complement is #5F363E, a dark muted wine, 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#134E4A
Complement#5F363E

Complementary

Open in Harmony Studio

−30°#264E38
Base#134E4A
+30°#164B59

Analogous

Open in Harmony Studio

Base#134E4A
+120°#4D3B5C
+240°#593E1F

Triadic

Open in Harmony Studio

Base#134E4A
+150°#59374F
+210°#5F382C

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-900: #134e4a;
}

Tailwind config

// tailwind.config.js — already built in as teal-900;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        teal: { 900: '#134e4a' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own teal-900; this pins the v3 value. */
  --color-teal-900: oklch(0.386 0.059 188.4);
}

Design token (W3C DTCG)

{
  "color": {
    "teal-900": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.0745, 0.3059, 0.2902],
        "hex": "#134e4a"
      },
      "$description": "Tailwind CSS v3 teal-900"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let teal900 = Color(.sRGB, red: 0.075, green: 0.306, blue: 0.290, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Teal900 = Color(0xFF134E4A)
}

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.

Tools

Open #134E4A in the tools

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

Tailwind teal-900 #134E4A

#134E4A color codes

Contrast: is #134E4A accessible?

Black text on it

White text on it

As text on black

As text on white

Nearest versions that pass 4.5:1

Adjust #134E4A live

Shades and tints of #134E4A

Tailwind CSS v3 teal scale

How vivid #134E4A can get

Mixing #134E4A

#134E4A in an interface

How #134E4A looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #134E4A

Complementary

Analogous

Triadic

Split-complementary

Design tokens

CSS custom property

Tailwind config

Tailwind v4 theme

Design token (W3C DTCG)

SwiftUI color

Jetpack Compose color

The nearest match in each system

Similar colors

Open #134E4A in the tools