Tailwind CSS v3 color

Tailwind red-400 #F87171

Tailwind CSS v3's red-400 is #F87171. It is a light soft red in the red family. In OKLCH it sits at lightness 0.711, chroma 0.166 and hue 22.2°. The nearest CSS named color is lightcoral (#F08080), ΔE2000 3.7 away.

Relative luminance
0.3296
OKLCH L · C · h
0.711 · 0.166 · 22.2
Best text
Black 7.59:1
Hue family
Red
Inspect this color Check contrast

#F87171 color codes

HEX
#F87171
RGB
rgb(248, 113, 113)
HSL
hsl(0, 91%, 71%)
OKLCH
oklch(0.711 0.166 22.2)
OKLab
oklab(0.711 0.154 0.063)
CIELAB (D65)
L* 64.13, a* 51.67, b* 25.47
XYZ (D65)
X 47.60, Y 32.96, Z 19.48
CMYK (naive)
cmyk(0%, 54%, 54%, 3%)

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 #F87171 accessible?

Black text on it reaches 7.59:1, passing AAA. White text fails at 2.76:1.

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

    7.59:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +51

  • White text on it

    2.76:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −57

  • As text on black

    7.59:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −49

  • As text on white

    2.76:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +52

Nearest versions that pass 4.5:1

  • For text on white

    #CC494D 4.53:1

    Darkening its OKLCH lightness from 0.71 to 0.59 reaches 4.53:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #F87171 7.59:1

    It already reaches 7.59:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #F87171 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 #F87171

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #F87171 sits at step 400.

  1. 50#FFF2F1
    White
    1.09
    Black
    19.22
  2. 100#FFE4E2
    White
    1.20
    Black
    17.44
  3. 200#FFC8C5
    White
    1.46
    Black
    14.31
  4. 300#FFA09C
    White
    1.95
    Black
    10.76
  5. 400This color#F87171
    White
    2.76
    Black
    7.59
  6. 500#D85456
    White
    3.94
    Black
    5.32
  7. 600#BB3A40
    White
    5.53
    Black
    3.79
  8. 700#9E202B
    White
    7.79
    Black
    2.69
  9. 800#7C0017
    White
    11.23
    Black
    1.86
  10. 900#53000C
    White
    15.29
    Black
    1.37
  11. 950#320004
    White
    18.46
    Black
    1.13

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

Tailwind CSS v3 red scale

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

  1. 50#FEF2F2
    White
    1.09
    Black
    19.19
  2. 100#FEE2E2
    White
    1.22
    Black
    17.19
  3. 200#FECACA
    White
    1.44
    Black
    14.51
  4. 300#FCA5A5
    White
    1.89
    Black
    11.06
  5. 400This color#F87171
    White
    2.76
    Black
    7.59
  6. 500#EF4444
    White
    3.76
    Black
    5.58
  7. 600#DC2626
    White
    4.82
    Black
    4.34
  8. 700#B91C1C
    White
    6.47
    Black
    3.24
  9. 800#991B1B
    White
    8.31
    Black
    2.52
  10. 900#7F1D1D
    White
    10.01
    Black
    2.09
  11. 950#450A0A
    White
    16.14
    Black
    1.30

Gamut

How vivid #F87171 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.182; #F87171 uses 91% of it. Display P3, which many recent phones and laptops show, reaches 0.232 there: 28% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.166
sRGB edge
0.182
Display P3 edge
0.232
Rec. 2020 edge
0.333
Dominant wavelength
611 nm
Excitation purity
46%
Chromaticity
x 0.4758, y 0.3295
  • This color#F87171
  • Most vivid in sRGB#FF6A6C
  • Most vivid in Display P3oklch(0.711 0.232 22.2)

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

Use the wider color where screens show it
.accent {
  color: #f87171;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 1 0.3722 0.3821); }
}

Mixing

Mixing #F87171

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%#FCB8B8
  • OKLab50%#FFBAB7
  • OKLCH50%#FFBCB8

Black #000000

  • sRGB50%#7C3939
  • OKLab50%#602727
  • OKLCH50%#602727

Its complement #00B7C2

  • sRGB50%#7C949A
  • OKLab50%#AF9C9B
  • OKLCH50%#A58FF3
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #f87171, white);
color: color-mix(in oklch, #f87171 50%, white);

In use

#F87171 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, 4.5:17.59:1 Passes
  • Link and body-size textText, 4.5:12.76:1 Fails
  • Large headingLarge text, 3:12.76:1 Fails
  • Icons, borders and focus ringsNon-text, 3:12.76:1 Fails

For text on this page, the nearest shade that passes is #CC494D 4.53:1

Dark page

  • Button labelText, 4.5:17.59:1 Passes
  • Link and body-size textText, 4.5:16.77:1 Passes
  • Large headingLarge text, 3:16.77:1 Passes
  • Icons, borders and focus ringsNon-text, 3:16.77:1 Passes

Color vision

How #F87171 looks with color blindness

Deuteranopia changes it most, ΔE2000 36.0; tritanopia changes it least, 5.4.

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

    #918A70 ΔE2000 31.2

    Distinct

    Reads as grayish amber

  • Deuteranopia

    No working green (medium-wavelength) cones

    #B3A66E ΔE2000 36.0

    Distinct

    Reads as light muted amber

  • Tritanopia

    No working blue (short-wavelength) cones

    #FF5B72 ΔE2000 5.4

    Noticeable

    Reads as light vivid red

  • Achromatopsia

    No cone color vision; lightness only

    #9B9B9B ΔE2000 25.7

    Distinct

    Reads as gray

Pairing check

Checked against its complement, #00B7C2. Their lightness contrast is only 1.12:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#F87171 · #00B7C254.8Stays distinct
Protanopia#918A70 · #A7AEC324.7Stays distinct
Deuteranopia#B3A66E · #919EC335.5Stays distinct
Tritanopia#FF5B72 · #00BFBA64.3Stays distinct
Achromatopsia#9B9B9B · #A5A5A53.1Easily confused

Harmony

Color harmonies for #F87171

Its complement is #00B7C2, a light soft cyan, 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#F87171
  • Complement#00B7C2

Complementary

Open in Harmony Studio
  • −30°#ED70AC
  • Base#F87171
  • +30°#F07F29

Analogous

Open in Harmony Studio
  • Base#F87171
  • +120°#5DBB55
  • +240°#6D9FFF

Triadic

Open in Harmony Studio
  • Base#F87171
  • +150°#00BD98
  • +210°#00B0EC

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-red-400: #f87171;
}

Tailwind config

// tailwind.config.js — already built in as red-400;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        red: { 400: '#f87171' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own red-400; this pins the v3 value. */
  --color-red-400: oklch(0.711 0.166 22.2);
}

Design token (W3C DTCG)

{
  "color": {
    "red-400": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9725, 0.4431, 0.4431],
        "hex": "#f87171"
      },
      "$description": "Tailwind CSS v3 red-400"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let red400 = Color(.sRGB, red: 0.973, green: 0.443, blue: 0.443, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Red400 = Color(0xFFF87171)
}

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 #F87171 in the tools

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