Tailwind CSS v3 color

Tailwind stone-600 #57534E

Tailwind CSS v3's stone-600 is #57534E. It is a dark gray in the neutral family. In OKLCH it sits at lightness 0.444 with chroma 0.010, too low for hue to matter. The nearest CSS named color is dimgray (#696969), ΔE2000 8.5 away.

Relative luminance
0.0876
OKLCH L · C · h
0.444 · 0.010 · 73.6
Best text
White 7.62:1
Hue family
Neutral
Inspect this color Check contrast

#57534E color codes

HEX
#57534E
RGB
rgb(87, 83, 78)
HSL
hsl(33, 5%, 32%)
OKLCH
oklch(0.444 0.010 73.6)
OKLab
oklab(0.444 0.003 0.009)
CIELAB (D65)
L* 35.52, a* 0.62, b* 3.51
XYZ (D65)
X 8.40, Y 8.76, Z 8.46
CMYK (naive)
cmyk(0%, 5%, 10%, 66%)

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 #57534E accessible?

White text on it reaches 7.62:1, passing AAA. Black text fails at 2.75:1.

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

    2.75:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +17

  • White text on it

    7.62:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −91

  • As text on black

    2.75:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −15

  • As text on white

    7.62:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +86

Nearest versions that pass 4.5:1

  • For text on white

    #57534E 7.62:1

    It already reaches 7.62:1 on white, so no change is needed.

  • For text on black

    #78746E 4.52:1

    Lightening its OKLCH lightness from 0.44 to 0.56 reaches 4.52:1 on black, keeping the hue.

    Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #57534E 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 #57534E

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #57534E sits at step 700.

  1. 50#F8F4F0
    White
    1.09
    Black
    19.18
  2. 100#EEEAE5
    White
    1.19
    Black
    17.53
  3. 200#DBD7D1
    White
    1.43
    Black
    14.65
  4. 300#C1BDB7
    White
    1.86
    Black
    11.23
  5. 400#A5A19B
    White
    2.57
    Black
    8.17
  6. 500#8A8580
    White
    3.65
    Black
    5.74
  7. 600#726E69
    White
    5.06
    Black
    4.14
  8. 700This color#57534E
    White
    7.62
    Black
    2.75
  9. 800#433F3B
    White
    10.43
    Black
    2.01
  10. 900#2B2825
    White
    14.65
    Black
    1.43
  11. 950#181612
    White
    18.06
    Black
    1.16

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

Tailwind CSS v3 stone scale

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

  1. 50#FAFAF9
    White
    1.04
    Black
    20.10
  2. 100#F5F5F4
    White
    1.09
    Black
    19.24
  3. 200#E7E5E4
    White
    1.25
    Black
    16.72
  4. 300#D6D3D1
    White
    1.48
    Black
    14.09
  5. 400#A8A29E
    White
    2.52
    Black
    8.32
  6. 500#78716C
    White
    4.79
    Black
    4.37
  7. 600This color#57534E
    White
    7.62
    Black
    2.75
  8. 700#44403C
    White
    10.27
    Black
    2.04
  9. 800#292524
    White
    15.16
    Black
    1.38
  10. 900#1C1917
    White
    17.48
    Black
    1.20
  11. 950#0C0A09
    White
    19.75
    Black
    1.06

Gamut

How vivid #57534E can get

A gray has no hue, so no gamut holds a more vivid version of #57534E: more chroma would make it another color.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.010
sRGB edge
No hue
Display P3 edge
No hue
Rec. 2020 edge
No hue
Dominant wavelength
579 nm
Excitation purity
8%
Chromaticity
x 0.3279, y 0.3421

Mixing

Mixing #57534E

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%#ABA9A7
  • OKLab50%#A7A5A2
  • OKLCH50%#A7A5A2

Black #000000

  • sRGB50%#2C2A27
  • OKLab50%#1C1B19
  • OKLCH50%#1C1B19
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #57534e, white);
color: color-mix(in oklch, #57534e 50%, white);

In use

#57534E 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, 4.5:17.62:1 Passes
  • Link and body-size textText, 4.5:17.62:1 Passes
  • Large headingLarge text, 3:17.62:1 Passes
  • Icons, borders and focus ringsNon-text, 3:17.62:1 Passes

Dark page

  • Button labelText, 4.5:17.62:1 Passes
  • Link and body-size textText, 4.5:12.45:1 Fails
  • Large headingLarge text, 3:12.45:1 Fails
  • Icons, borders and focus ringsNon-text, 3:12.45:1 Fails

For text on this page, the nearest shade that passes is #817C77 4.53:1

Color vision

How #57534E looks with color blindness

As a neutral it barely changes under any simulation, ΔE2000 4.0 at most.

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

    #55534E ΔE2000 1.2

    Very close

    Reads as dark gray

  • Deuteranopia

    No working green (medium-wavelength) cones

    #56544E ΔE2000 1.5

    Very close

    Reads as dark gray

  • Tritanopia

    No working blue (short-wavelength) cones

    #595252 ΔE2000 4.0

    Close match

    Reads as dark gray

  • Achromatopsia

    No cone color vision; lightness only

    #545454 ΔE2000 3.4

    Close match

    Reads as dark gray

Pairing check

A near-neutral has no complementary hue to pair with, so tell it apart from neighboring grays by lightness contrast alone.

Harmony

Color harmonies for #57534E

A neutral has no hue to rotate, so every harmony collapses back to the same gray. Pair it with an accent color instead.

Or pair it by lightness: steps of its own scale as text on it, and what each can carry.

Build a lightness scale in Harmony Studio

  • Step 50 #F8F4F0 · 6.97:1

    Body text, AA

  • Step 300 #C1BDB7 · 4.07:1

    Large text, icons and borders

  • Step 700 #57534E · 1.00:1

    Decoration only, under 3:1

Code

Design tokens

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

CSS custom property

:root {
  --color-stone-600: #57534e;
}

Tailwind config

// tailwind.config.js — already built in as stone-600;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        stone: { 600: '#57534e' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own stone-600; this pins the v3 value. */
  --color-stone-600: oklch(0.444 0.010 73.6);
}

Design token (W3C DTCG)

{
  "color": {
    "stone-600": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.3412, 0.3255, 0.3059],
        "hex": "#57534e"
      },
      "$description": "Tailwind CSS v3 stone-600"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let stone600 = Color(.sRGB, red: 0.341, green: 0.325, blue: 0.306, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Stone600 = Color(0xFF57534E)
}

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 #57534E in the tools

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