Tailwind CSS v3 color

Tailwind yellow-400 #FACC15

Tailwind CSS v3's yellow-400 is #FACC15. It is a pale vivid amber in the yellow family. In OKLCH it sits at lightness 0.861, chroma 0.173 and hue 91.9°. The nearest CSS named color is gold (#FFD700), ΔE2000 3.1 away.

Relative luminance
0.6356
OKLCH L · C · h
0.861 · 0.173 · 91.9
Best text
Black 13.71:1
Hue family
Yellow
Inspect this color Check contrast

#FACC15 color codes

HEX
#FACC15
RGB
rgb(250, 204, 21)
HSL
hsl(48, 96%, 53%)
OKLCH
oklch(0.861 0.173 91.9)
OKLab
oklab(0.861 -0.006 0.173)
CIELAB (D65)
L* 83.74, a* 1.74, b* 82.46
XYZ (D65)
X 61.16, Y 63.57, Z 9.76
CMYK (naive)
cmyk(0%, 18%, 92%, 2%)

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 #FACC15 accessible?

Black text on it reaches 13.71:1, passing AAA. White text fails at 1.53:1.

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

    13.71:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +79

  • White text on it

    1.53:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −27

  • As text on black

    13.71:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −78

  • As text on white

    1.53:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +24

Nearest versions that pass 4.5:1

  • For text on white

    #8F7300 4.54:1

    Darkening its OKLCH lightness from 0.86 to 0.57 reaches 4.54:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #FACC15 13.71:1

    It already reaches 13.71:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #FACC15 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 #FACC15

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #FACC15 sits at step 200.

  1. 50#FFF5D6
    White
    1.08
    Black
    19.28
  2. 100#FFEAAB
    White
    1.19
    Black
    17.60
  3. 200This color#FACC15
    White
    1.53
    Black
    13.71
  4. 300#E3B908
    White
    1.87
    Black
    11.20
  5. 400#C29D00
    White
    2.58
    Black
    8.11
  6. 500#A28300
    White
    3.63
    Black
    5.78
  7. 600#866C00
    White
    5.04
    Black
    4.15
  8. 700#6B5600
    White
    7.10
    Black
    2.95
  9. 800#4E3E00
    White
    10.43
    Black
    2.01
  10. 900#332700
    White
    14.67
    Black
    1.43
  11. 950#1D1500
    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 yellow scale

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

  1. 50#FEFCE8
    White
    1.03
    Black
    20.30
  2. 100#FEF9C3
    White
    1.07
    Black
    19.55
  3. 200#FEF08A
    White
    1.16
    Black
    18.04
  4. 300#FDE047
    White
    1.31
    Black
    15.92
  5. 400This color#FACC15
    White
    1.53
    Black
    13.71
  6. 500#EAB308
    White
    1.91
    Black
    10.95
  7. 600#CA8A04
    White
    2.93
    Black
    7.14
  8. 700#A16207
    White
    4.92
    Black
    4.26
  9. 800#854D0E
    White
    6.85
    Black
    3.06
  10. 900#713F12
    White
    8.67
    Black
    2.42
  11. 950#422006
    White
    14.57
    Black
    1.44

Gamut

How vivid #FACC15 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.176; #FACC15 uses 98% of it. Display P3, which many recent phones and laptops show, reaches 0.203 there: 16% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.173
sRGB edge
0.176
Display P3 edge
0.203
Rec. 2020 edge
0.208
Dominant wavelength
577 nm
Excitation purity
80%
Chromaticity
x 0.4548, y 0.4727
  • This color#FACC15
  • Most vivid in sRGB#FBCC00
  • Most vivid in Display P3oklch(0.861 0.203 91.9)

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

Use the wider color where screens show it
.accent {
  color: #facc15;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.9746 0.8002 0); }
}

Mixing

Mixing #FACC15

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%#FDE68A
  • OKLab50%#FDE7A5
  • OKLCH50%#FDE7A5

Black #000000

  • sRGB50%#7D660B
  • OKLab50%#614E03
  • OKLCH50%#614E03

Its complement #C1CFFF

  • sRGB50%#DECE8A
  • OKLab50%#DDD1AB
  • OKLCH50%#FFBBCD
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #facc15, white);
color: color-mix(in oklch, #facc15 50%, white);

In use

#FACC15 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, 4.5:113.71:1 Passes
  • Link and body-size textText, 4.5:11.53:1 Fails
  • Large headingLarge text, 3:11.53:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.53:1 Fails

For text on this page, the nearest shade that passes is #8F7300 4.54:1

Dark page

  • Button labelText, 4.5:113.71:1 Passes
  • Link and body-size textText, 4.5:112.23:1 Passes
  • Large headingLarge text, 3:112.23:1 Passes
  • Icons, borders and focus ringsNon-text, 3:112.23:1 Passes

Color vision

How #FACC15 looks with color blindness

Tritanopia changes it most, ΔE2000 33.3; protanopia changes it least, 5.0.

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

    #E4C900 ΔE2000 5.0

    Close match

    Reads as pale vivid amber

  • Deuteranopia

    No working green (medium-wavelength) cones

    #F0D629 ΔE2000 5.3

    Noticeable

    Reads as pale vivid amber

  • Tritanopia

    No working blue (short-wavelength) cones

    #FFBAAE ΔE2000 33.3

    Distinct

    Reads as pale muted red

  • Achromatopsia

    No cone color vision; lightness only

    #D1D1D1 ΔE2000 28.9

    Distinct

    Reads as light gray

Pairing check

Checked against its complement, #C1CFFF. Their lightness contrast is only 1.00:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#FACC15 · #C1CFFF48.7Stays distinct
Protanopia#E4C900 · #C1D3FF48.2Stays distinct
Deuteranopia#F0D629 · #BCCEFE49.4Stays distinct
Tritanopia#FFBAAE · #B2D8DF38.2Stays distinct
Achromatopsia#D1D1D1 · #D0D0D00.2Easily confused

Harmony

Color harmonies for #FACC15

Its complement is #C1CFFF, a pale muted blue, 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#FACC15
  • Complement#C1CFFF

Complementary

Open in Harmony Studio
  • −30°#FFC390
  • Base#FACC15
  • +30°#BFE251

Analogous

Open in Harmony Studio
  • Base#FACC15
  • +120°#60E6FF
  • +240°#FFB4F4

Triadic

Open in Harmony Studio
  • Base#FACC15
  • +150°#A6D8FF
  • +210°#DBC5FF

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-yellow-400: #facc15;
}

Tailwind config

// tailwind.config.js — already built in as yellow-400;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        yellow: { 400: '#facc15' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own yellow-400; this pins the v3 value. */
  --color-yellow-400: oklch(0.861 0.173 91.9);
}

Design token (W3C DTCG)

{
  "color": {
    "yellow-400": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9804, 0.8, 0.0824],
        "hex": "#facc15"
      },
      "$description": "Tailwind CSS v3 yellow-400"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let yellow400 = Color(.sRGB, red: 0.980, green: 0.800, blue: 0.082, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Yellow400 = Color(0xFFFACC15)
}

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 #FACC15 in the tools

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