Tailwind CSS v3 color

Tailwind gray-100 #F3F4F6

Tailwind CSS v3's gray-100 is #F3F4F6. It is an off-white in the neutral family. In OKLCH it sits at lightness 0.967 with chroma 0.003, too low for hue to matter. The nearest CSS named color is whitesmoke (#F5F5F5), ΔE2000 1.1 away.

Relative luminance
0.9041
OKLCH L · C · h
0.967 · 0.003 · 264.5
Best text
Black 19.08:1
Hue family
Neutral
Inspect this color Check contrast

#F3F4F6 color codes

HEX
#F3F4F6
RGB
rgb(243, 244, 246)
HSL
hsl(220, 14%, 96%)
OKLCH
oklch(0.967 0.003 264.5)
OKLab
oklab(0.967 0.000 -0.003)
CIELAB (D65)
L* 96.17, a* 0.02, b* -1.08
XYZ (D65)
X 85.94, Y 90.41, Z 100.09
CMYK (naive)
cmyk(1%, 1%, 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 #F3F4F6 accessible?

Black text on it reaches 19.08:1, passing AAA. White text fails at 1.10:1.

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

    19.08:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +99

  • White text on it

    1.10:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc 0

    Text is here, unreadable at 1.10:1

  • As text on black

    19.08:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −100

  • As text on white

    1.10:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc 0

    Text is here, unreadable at 1.10:1

Nearest versions that pass 4.5:1

  • For text on white

    #767678 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

    #F3F4F6 19.08:1

    It already reaches 19.08:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #F3F4F6 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 #F3F4F6

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #F3F4F6 sits at step 50.

  1. 50This color#F3F4F6
    White
    1.10
    Black
    19.08
  2. 100#EAEBED
    White
    1.19
    Black
    17.60
  3. 200#D6D7D9
    White
    1.44
    Black
    14.58
  4. 300#BDBEBF
    White
    1.86
    Black
    11.28
  5. 400#A0A1A3
    White
    2.58
    Black
    8.12
  6. 500#858688
    White
    3.64
    Black
    5.76
  7. 600#6E6F70
    White
    5.03
    Black
    4.17
  8. 700#57585A
    White
    7.12
    Black
    2.94
  9. 800#3F4041
    White
    10.39
    Black
    2.02
  10. 900#28292A
    White
    14.57
    Black
    1.44
  11. 950#151617
    White
    18.11
    Black
    1.15

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

Tailwind CSS v3 gray scale

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

  1. 50#F9FAFB
    White
    1.04
    Black
    20.09
  2. 100This color#F3F4F6
    White
    1.10
    Black
    19.08
  3. 200#E5E7EB
    White
    1.23
    Black
    16.96
  4. 300#D1D5DB
    White
    1.47
    Black
    14.25
  5. 400#9CA3AF
    White
    2.53
    Black
    8.27
  6. 500#6B7280
    White
    4.83
    Black
    4.34
  7. 600#4B5563
    White
    7.55
    Black
    2.77
  8. 700#374151
    White
    10.30
    Black
    2.03
  9. 800#1F2937
    White
    14.67
    Black
    1.43
  10. 900#111827
    White
    17.73
    Black
    1.18
  11. 950#030712
    White
    20.13
    Black
    1.04

Gamut

How vivid #F3F4F6 can get

A gray has no hue, so no gamut holds a more vivid version of #F3F4F6: 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
0.003
sRGB edge
No hue
Display P3 edge
No hue
Rec. 2020 edge
No hue
Dominant wavelength
None, near white
Excitation purity
1%
Chromaticity
x 0.3109, y 0.3270

Mixing

Mixing #F3F4F6

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%#F9FAFB
  • 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, #f3f4f6, white);
color: color-mix(in oklch, #f3f4f6 50%, white);

In use

#F3F4F6 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, 4.5:119.08:1 Passes
  • Link and body-size textText, 4.5:11.10:1 Fails
  • Large headingLarge text, 3:11.10:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.10:1 Fails

For text on this page, the nearest shade that passes is #767678 4.53:1

Dark page

  • Button labelText, 4.5:119.08:1 Passes
  • Link and body-size textText, 4.5:117.02:1 Passes
  • Large headingLarge text, 3:117.02:1 Passes
  • Icons, borders and focus ringsNon-text, 3:117.02:1 Passes

Color vision

How #F3F4F6 looks with color blindness

As a neutral it barely changes under any simulation, ΔE2000 1.1 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

    #F3F4F6 ΔE2000 0.0

    Imperceptible

    Reads as off-white

  • Deuteranopia

    No working green (medium-wavelength) cones

    #F3F4F6 ΔE2000 0.0

    Imperceptible

    Reads as off-white

  • Tritanopia

    No working blue (short-wavelength) cones

    #F2F4F5 ΔE2000 0.8

    Imperceptible

    Reads as off-white

  • Achromatopsia

    No cone color vision; lightness only

    #F4F4F4 ΔE2000 1.1

    Very close

    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 #F3F4F6

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 #151617 · 16.46:1

    Body text, AAA

  • Step 700 #57585A · 6.47:1

    Body text, AA

  • Step 300 #BDBEBF · 1.69:1

    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-gray-100: #f3f4f6;
}

Tailwind config

// tailwind.config.js — already built in as gray-100;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        gray: { 100: '#f3f4f6' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own gray-100; this pins the v3 value. */
  --color-gray-100: oklch(0.967 0.003 264.5);
}

Design token (W3C DTCG)

{
  "color": {
    "gray-100": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9529, 0.9569, 0.9647],
        "hex": "#f3f4f6"
      },
      "$description": "Tailwind CSS v3 gray-100"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let gray100 = Color(.sRGB, red: 0.953, green: 0.957, blue: 0.965, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Gray100 = Color(0xFFF3F4F6)
}

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 #F3F4F6 in the tools

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