Tailwind CSS v3 color

Tailwind zinc-100 #F4F4F5

Tailwind CSS v3's zinc-100 is #F4F4F5. It is an off-white in the neutral family. In OKLCH it sits at lightness 0.967 with chroma 0.001, too low for hue to matter. The nearest CSS named color is whitesmoke (#F5F5F5), ΔE2000 0.6 away.

Relative luminance: 0.9053
OKLCH L · C · h: 0.967 · 0.001 · 286.4
Best text: Black 19.10:1
Hue family: Neutral

Inspect this color Check contrast

#F4F4F5 color codes

HEX: #F4F4F5
RGB: rgb(244, 244, 245)
HSL: hsl(240, 5%, 96%)
OKLCH: oklch(0.967 0.001 286.4)
OKLab: oklab(0.967 0.000 -0.001)
CIELAB (D65): L* 96.21, a* 0.18, b* -0.48
XYZ (D65): X 86.14, Y 90.53, Z 99.30
CMYK (naive): cmyk(0%, 0%, 0%, 4%)

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 #F4F4F5 accessible?

Black text on it reaches 19.10:1, passing AAA. White text fails at 1.09:1.

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

19.10:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +99
White text on it

1.09:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.09:1
As text on black

19.10:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −100
As text on white

1.09:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.09:1

Nearest versions that pass 4.5:1

For text on white

#767677 4.53:1

Darkening its OKLCH lightness from 0.97 to 0.57 reaches 4.53:1 on white, keeping the hue.

Compare both in the Contrast System
For text on black

#F4F4F5 19.10:1

It already reaches 19.10:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #F4F4F5 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 #F4F4F5

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #F4F4F5 sits at step 50.

50This color#F4F4F5

White
1.09
Black
19.10
100#EBEBEC

White
1.19
Black
17.62
200#D7D7D8

White
1.43
Black
14.60
300#BDBDBE

White
1.87
Black
11.18
400#A1A1A2

White
2.58
Black
8.13
500#868687

White
3.63
Black
5.77
600#6E6E6F

White
5.09
Black
4.12
700#585859

White
7.10
Black
2.95
800#404040
White
10.36
Black
2.02
900#292929

White
14.54
Black
1.44
950#161616

White
18.09
Black
1.16

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

Tailwind CSS v3 zinc scale

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

50#FAFAFA
White
1.04
Black
20.11
100This color#F4F4F5

White
1.09
Black
19.10
200#E4E4E7
White
1.26
Black
16.55
300#D4D4D8
White
1.47
Black
14.20
400#A1A1AA
White
2.56
Black
8.19
500#71717A
White
4.83
Black
4.34
600#52525B
White
7.72
Black
2.71
700#3F3F46
White
10.44
Black
2.01
800#27272A
White
14.89
Black
1.40
900#18181B
White
17.71
Black
1.18
950#09090B
White
19.89
Black
1.05

Gamut

How vivid #F4F4F5 can get

A gray has no hue, so no gamut holds a more vivid version of #F4F4F5: more chroma would make it another color.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.001
sRGB edge: No hue
Display P3 edge: No hue
Rec. 2020 edge: No hue
Dominant wavelength: None, near white
Excitation purity: 0%
Chromaticity: x 0.3121, y 0.3280

Mixing

Mixing #F4F4F5

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%#FAFAFA
OKLab50%#F9F9FA
OKLCH50%#F9F9FA

Black #000000

sRGB50%#7A7A7B
OKLab50%#5E5E5F
OKLCH50%#5E5E5F

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #f4f4f5, white);
color: color-mix(in oklch, #f4f4f5 50%, white);

In use

#F4F4F5 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, 4.5:119.10:1 Passes
Link and body-size textText, 4.5:11.09:1 Fails
Large headingLarge text, 3:11.09:1 Fails
Icons, borders and focus ringsNon-text, 3:11.09:1 Fails

For text on this page, the nearest shade that passes is #767677 4.53:1

Dark page

Button labelText, 4.5:119.10:1 Passes
Link and body-size textText, 4.5:117.04:1 Passes
Large headingLarge text, 3:117.04:1 Passes
Icons, borders and focus ringsNon-text, 3:117.04:1 Passes

Color vision

How #F4F4F5 looks with color blindness

As a neutral it barely changes under any simulation, ΔE2000 0.5 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

#F4F4F5 ΔE2000 0.0

Imperceptible

Reads as off-white
Deuteranopia

No working green (medium-wavelength) cones

#F4F4F5 ΔE2000 0.0

Imperceptible

Reads as off-white
Tritanopia

No working blue (short-wavelength) cones

#F4F4F4 ΔE2000 0.5

Imperceptible

Reads as off-white
Achromatopsia

No cone color vision; lightness only

#F4F4F4 ΔE2000 0.5

Imperceptible

Reads as off-white

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 #F4F4F5

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 950 #161616 · 16.46:1

Body text, AAA
Step 700 #585859 · 6.46:1

Body text, AA
Step 300 #BDBDBE · 1.70:1

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-zinc-100: #f4f4f5;
}

Tailwind config

// tailwind.config.js — already built in as zinc-100;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        zinc: { 100: '#f4f4f5' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own zinc-100; this pins the v3 value. */
  --color-zinc-100: oklch(0.967 0.001 286.4);
}

Design token (W3C DTCG)

{
  "color": {
    "zinc-100": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9569, 0.9569, 0.9608],
        "hex": "#f4f4f5"
      },
      "$description": "Tailwind CSS v3 zinc-100"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let zinc100 = Color(.sRGB, red: 0.957, green: 0.957, blue: 0.961, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Zinc100 = Color(0xFFF4F4F5)
}

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 #F4F4F5 in the tools

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