Tailwind CSS v3 color

Tailwind pink-900 #831843

Tailwind CSS v3's pink-900 is #831843. It is a dark soft wine in the pink family. In OKLCH it sits at lightness 0.408, chroma 0.144 and hue 2.4°. The nearest CSS named color is purple (#800080), ΔE2000 16.2 away.

Relative luminance: 0.0588
OKLCH L · C · h: 0.408 · 0.144 · 2.4
Best text: White 9.64:1
Hue family: Pink

Inspect this color Check contrast

#831843 color codes

HEX: #831843
RGB: rgb(131, 24, 67)
HSL: hsl(336, 69%, 30%)
OKLCH: oklch(0.408 0.144 2.4)
OKLab: oklab(0.408 0.144 0.006)
CIELAB (D65): L* 29.12, a* 46.94, b* 2.19
XYZ (D65): X 10.70, Y 5.89, Z 5.88
CMYK (naive): cmyk(0%, 82%, 49%, 49%)

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 #831843 accessible?

White text on it reaches 9.64:1, passing AAA. Black text fails at 2.17:1.

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

2.17:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc +12
White text on it

9.64:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −95
As text on black

2.17:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc −11
As text on white

9.64:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +91

Nearest versions that pass 4.5:1

For text on white

#831843 9.64:1

It already reaches 9.64:1 on white, so no change is needed.
For text on black

#BE5174 4.61:1

Lightening its OKLCH lightness from 0.41 to 0.58 reaches 4.61:1 on black, keeping the hue.

Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #831843 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 #831843

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #831843 sits at step 800.

50#FFF1F4

White
1.09
Black
19.14
100#FFE3E9

White
1.20
Black
17.41
200#FFC6D3

White
1.47
Black
14.27
300#FF9BB7

White
1.97
Black
10.62
400#E8799A

White
2.75
Black
7.63
500#CA5C7F

White
3.92
Black
5.34
600#AF4467

White
5.46
Black
3.84
700#932D51

White
7.67
Black
2.73
800This color#831843

White
9.64
Black
2.17
900#510024

White
15.26
Black
1.37
950#300013

White
18.50
Black
1.13

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

Tailwind CSS v3 pink scale

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

50#FDF2F8
White
1.09
Black
19.23
100#FCE7F3
White
1.17
Black
17.86
200#FBCFE8
White
1.38
Black
15.19
300#F9A8D4
White
1.81
Black
11.57
400#F472B6
White
2.64
Black
7.92
500#EC4899
White
3.52
Black
5.95
600#DB2777
White
4.59
Black
4.56
700#BE185D
White
6.03
Black
3.47
800#9D174D
White
7.88
Black
2.66
900This color#831843

White
9.64
Black
2.17
950#500724
White
15.03
Black
1.39

Gamut

How vivid #831843 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.165; #831843 uses 88% of it. Display P3, which many recent phones and laptops show, reaches 0.186 there: 13% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.144
sRGB edge: 0.165
Display P3 edge: 0.186
Rec. 2020 edge: 0.218
Dominant wavelength: Complementary 496 nm
Excitation purity: 55%
Chromaticity: x 0.4763, y 0.2619

This color#831843
Most vivid in sRGB#8A0042
Most vivid in Display P3oklch(0.408 0.186 2.4)

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

Use the wider color where screens show it

.accent {
  color: #831843;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.5149 0 0.2536); }
}

Mixing

Mixing #831843

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%#C18CA1
OKLab50%#C68D9C
OKLCH50%#C68D9C

Black #000000

sRGB50%#420C22
OKLab50%#2F0414
OKLCH50%#2F0414

Its complement #00564D

sRGB50%#423748
OKLab50%#5B4248
OKLCH50%#374384

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #831843, white);
color: color-mix(in oklch, #831843 50%, white);

In use

#831843 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, 4.5:19.64:1 Passes
Link and body-size textText, 4.5:19.64:1 Passes
Large headingLarge text, 3:19.64:1 Passes
Icons, borders and focus ringsNon-text, 3:19.64:1 Passes

Dark page

Button labelText, 4.5:19.64:1 Passes
Link and body-size textText, 4.5:11.94:1 Fails
Large headingLarge text, 3:11.94:1 Fails
Icons, borders and focus ringsNon-text, 3:11.94:1 Fails

For text on this page, the nearest shade that passes is #C6587B 4.53:1

Color vision

How #831843 looks with color blindness

Deuteranopia changes it most, ΔE2000 29.4; tritanopia changes it least, 8.7.

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

#333744 ΔE2000 25.8

Distinct

Reads as dark grayish blue
Deuteranopia

No working green (medium-wavelength) cones

#4F4C41 ΔE2000 29.4

Distinct

Reads as dark gray
Tritanopia

No working blue (short-wavelength) cones

#8F002B ΔE2000 8.7

Noticeable

Reads as dark soft red
Achromatopsia

No cone color vision; lightness only

#454545 ΔE2000 24.7

Distinct

Reads as dark gray

Pairing check

Checked against its complement, #00564D. Their lightness contrast is only 1.12:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#831843 · #00564D	44.7	Stays distinct
Protanopia	#333744 · #51504D	12.6	Stays distinct
Deuteranopia	#4F4C41 · #47494E	9.6	Harder to tell apart
Tritanopia	#8F002B · #005853	51.6	Stays distinct
Achromatopsia	#454545 · #4C4C4C	2.4	Easily confused

Harmony

Color harmonies for #831843

Its complement is #00564D, a dark muted teal, on the cool 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#831843
Complement#00564D

Complementary

Open in Harmony Studio

−30°#74226B
Base#831843
+30°#871C09

Analogous

Open in Harmony Studio

Base#831843
+120°#415200
+240°#004E7A

Triadic

Open in Harmony Studio

Base#831843
+150°#00592B
+210°#005460

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-pink-900: #831843;
}

Tailwind config

// tailwind.config.js — already built in as pink-900;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        pink: { 900: '#831843' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own pink-900; this pins the v3 value. */
  --color-pink-900: oklch(0.408 0.144 2.4);
}

Design token (W3C DTCG)

{
  "color": {
    "pink-900": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.5137, 0.0941, 0.2627],
        "hex": "#831843"
      },
      "$description": "Tailwind CSS v3 pink-900"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let pink900 = Color(.sRGB, red: 0.514, green: 0.094, blue: 0.263, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Pink900 = Color(0xFF831843)
}

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 #831843 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 pink-900 #831843

#831843 color codes

Contrast: is #831843 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 #831843 live

Shades and tints of #831843

Tailwind CSS v3 pink scale

How vivid #831843 can get

Mixing #831843

#831843 in an interface

How #831843 looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #831843

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 #831843 in the tools