Tailwind CSS v3 color

Tailwind amber-400 #FBBF24

Tailwind CSS v3's amber-400 is #FBBF24. It is a pale soft amber in the yellow family. In OKLCH it sits at lightness 0.837, chroma 0.164 and hue 84.4°. The nearest CSS named color is goldenrod (#DAA520), ΔE2000 7.4 away.

Relative luminance
0.5790
OKLCH L · C · h
0.837 · 0.164 · 84.4
Best text
Black 12.57:1
Hue family
Yellow
Inspect this color Check contrast

#FBBF24 color codes

HEX
#FBBF24
RGB
rgb(251, 191, 36)
HSL
hsl(43, 96%, 56%)
OKLCH
oklch(0.837 0.164 84.4)
OKLab
oklab(0.837 0.016 0.164)
CIELAB (D65)
L* 80.68, a* 9.14, b* 77.22
XYZ (D65)
X 58.74, Y 57.90, Z 9.75
CMYK (naive)
cmyk(0%, 24%, 86%, 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 #FBBF24 accessible?

Black text on it reaches 12.57:1, passing AAA. White text fails at 1.66:1.

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

    12.57:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +74

  • White text on it

    1.66:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −32

  • As text on black

    12.57:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −73

  • As text on white

    1.66:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +29

Nearest versions that pass 4.5:1

  • For text on white

    #966F00 4.59:1

    Darkening its OKLCH lightness from 0.84 to 0.57 reaches 4.59:1 on white, keeping the hue.

    Compare both in the Contrast System

  • For text on black

    #FBBF24 12.57:1

    It already reaches 12.57:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #FBBF24 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 #FBBF24

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #FBBF24 sits at step 300.

  1. 50#FFF4DE
    White
    1.09
    Black
    19.24
  2. 100#FFE9BC
    White
    1.19
    Black
    17.63
  3. 200#FFD06D
    White
    1.44
    Black
    14.49
  4. 300This color#FBBF24
    White
    1.66
    Black
    12.57
  5. 400#CB9800
    White
    2.61
    Black
    8.03
  6. 500#AA7E00
    White
    3.68
    Black
    5.69
  7. 600#8C6800
    White
    5.12
    Black
    4.09
  8. 700#705300
    White
    7.17
    Black
    2.92
  9. 800#523C00
    White
    10.47
    Black
    2.00
  10. 900#362600
    White
    14.64
    Black
    1.43
  11. 950#1F1400
    White
    18.12
    Black
    1.15

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

Tailwind CSS v3 amber scale

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

  1. 50#FFFBEB
    White
    1.03
    Black
    20.25
  2. 100#FEF3C7
    White
    1.11
    Black
    18.85
  3. 200#FDE68A
    White
    1.24
    Black
    16.86
  4. 300#FCD34D
    White
    1.44
    Black
    14.56
  5. 400This color#FBBF24
    White
    1.66
    Black
    12.57
  6. 500#F59E0B
    White
    2.14
    Black
    9.77
  7. 600#D97706
    White
    3.18
    Black
    6.59
  8. 700#B45309
    White
    5.02
    Black
    4.18
  9. 800#92400E
    White
    7.09
    Black
    2.96
  10. 900#78350F
    White
    9.07
    Black
    2.31
  11. 950#451A03
    White
    14.97
    Black
    1.40

Gamut

How vivid #FBBF24 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.172; #FBBF24 uses 96% of it. Display P3, which many recent phones and laptops show, reaches 0.198 there: 15% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.164
sRGB edge
0.172
Display P3 edge
0.198
Rec. 2020 edge
0.202
Dominant wavelength
579 nm
Excitation purity
79%
Chromaticity
x 0.4647, y 0.4581
  • This color#FBBF24
  • Most vivid in sRGB#FDBE00
  • Most vivid in Display P3oklch(0.837 0.198 84.4)

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

Use the wider color where screens show it
.accent {
  color: #fbbf24;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.9792 0.7466 0); }
}

Mixing

Mixing #FBBF24

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%#FDDF92
  • OKLab50%#FEE0A5
  • OKLCH50%#FEE0A5

Black #000000

  • sRGB50%#7E6012
  • OKLab50%#614807
  • OKLCH50%#614807

Its complement #AFCAFF

  • sRGB50%#D5C592
  • OKLab50%#D6C8AB
  • OKLCH50%#65E4C4
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #fbbf24, white);
color: color-mix(in oklch, #fbbf24 50%, white);

In use

#FBBF24 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, 4.5:112.57:1 Passes
  • Link and body-size textText, 4.5:11.66:1 Fails
  • Large headingLarge text, 3:11.66:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.66:1 Fails

For text on this page, the nearest shade that passes is #966F00 4.59:1

Dark page

  • Button labelText, 4.5:112.57:1 Passes
  • Link and body-size textText, 4.5:111.22:1 Passes
  • Large headingLarge text, 3:111.22:1 Passes
  • Icons, borders and focus ringsNon-text, 3:111.22:1 Passes

Color vision

How #FBBF24 looks with color blindness

Tritanopia changes it most, ΔE2000 33.0; protanopia changes it least, 9.2.

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

    #D9BF00 ΔE2000 9.2

    Noticeable

    Reads as light soft amber

  • Deuteranopia

    No working green (medium-wavelength) cones

    #E7CF2F ΔE2000 9.8

    Noticeable

    Reads as pale soft yellow

  • Tritanopia

    No working blue (short-wavelength) cones

    #FFACA4 ΔE2000 33.0

    Distinct

    Reads as pale muted red

  • Achromatopsia

    No cone color vision; lightness only

    #C8C8C8 ΔE2000 28.3

    Distinct

    Reads as light gray

Pairing check

Checked against its complement, #AFCAFF. Their lightness contrast is only 1.01:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#FBBF24 · #AFCAFF48.0Stays distinct
Protanopia#D9BF00 · #B8CDFF49.6Stays distinct
Deuteranopia#E7CF2F · #B1C6FE51.2Stays distinct
Tritanopia#FFACA4 · #98D5DC39.5Stays distinct
Achromatopsia#C8C8C8 · #C9C9C90.2Easily confused

Harmony

Color harmonies for #FBBF24

Its complement is #AFCAFF, 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#FBBF24
  • Complement#AFCAFF

Complementary

Open in Harmony Studio
  • −30°#FFB788
  • Base#FBBF24
  • +30°#C8D543

Analogous

Open in Harmony Studio
  • Base#FBBF24
  • +120°#00E4F5
  • +240°#F9A7FF

Triadic

Open in Harmony Studio
  • Base#FBBF24
  • +150°#89D4FF
  • +210°#CDBEFF

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-amber-400: #fbbf24;
}

Tailwind config

// tailwind.config.js — already built in as amber-400;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        amber: { 400: '#fbbf24' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own amber-400; this pins the v3 value. */
  --color-amber-400: oklch(0.837 0.164 84.4);
}

Design token (W3C DTCG)

{
  "color": {
    "amber-400": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9843, 0.749, 0.1412],
        "hex": "#fbbf24"
      },
      "$description": "Tailwind CSS v3 amber-400"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let amber400 = Color(.sRGB, red: 0.984, green: 0.749, blue: 0.141, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Amber400 = Color(0xFFFBBF24)
}

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 #FBBF24 in the tools

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