Tailwind CSS v3 color

Tailwind amber-100 #FEF3C7

Tailwind CSS v3's amber-100 is #FEF3C7. It is a pale muted amber in the yellow family. In OKLCH it sits at lightness 0.962, chroma 0.058 and hue 95.6°. The nearest CSS named color is lemonchiffon (#FFFACD), ΔE2000 2.5 away.

Relative luminance: 0.8930
OKLCH L · C · h: 0.962 · 0.058 · 95.6
Best text: Black 18.85:1
Hue family: Yellow

Inspect this color Check contrast

#FEF3C7 color codes

HEX: #FEF3C7
RGB: rgb(254, 243, 199)
HSL: hsl(48, 96%, 89%)
OKLCH: oklch(0.962 0.058 95.6)
OKLab: oklab(0.962 -0.006 0.058)
CIELAB (D65): L* 95.70, a* -3.12, b* 22.59
XYZ (D65): X 83.23, Y 89.30, Z 66.87
CMYK (naive): cmyk(0%, 4%, 22%, 0%)

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 #FEF3C7 accessible?

Black text on it reaches 18.85:1, passing AAA. White text fails at 1.11:1.

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

18.85:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc +98
White text on it

1.11:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.11:1
As text on black

18.85:1
- AA passes
- AA large passes
- AAA passes
- APCA Lc −99
As text on white

1.11:1
- AA fails
- AA large fails
- AAA fails
- APCA Lc 0
Text is here, unreadable at 1.11:1

Nearest versions that pass 4.5:1

For text on white

#7F754D 4.61:1

Darkening its OKLCH lightness from 0.96 to 0.56 reaches 4.61:1 on white, keeping the hue.

Compare both in the Contrast System
For text on black

#FEF3C7 18.85:1

It already reaches 18.85:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #FEF3C7 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 #FEF3C7

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #FEF3C7 sits at step 50.

50This color#FEF3C7

White
1.11
Black
18.85
100#F5ECC8

White
1.18
Black
17.71
200#E1D8B2

White
1.43
Black
14.66
300#C8BE96

White
1.86
Black
11.26
400#ACA279

White
2.56
Black
8.19
500#91865E

White
3.63
Black
5.77
600#796F47

White
5.02
Black
4.17
700#615832

White
7.11
Black
2.95
800#48401D

White
10.36
Black
2.02
900#302908

White
14.51
Black
1.44
950#1C1600

White
18.03
Black
1.16

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.

50#FFFBEB
White
1.03
Black
20.25
100This color#FEF3C7

White
1.11
Black
18.85
200#FDE68A
White
1.24
Black
16.86
300#FCD34D
White
1.44
Black
14.56
400#FBBF24
White
1.66
Black
12.57
500#F59E0B
White
2.14
Black
9.77
600#D97706
White
3.18
Black
6.59
700#B45309
White
5.02
Black
4.18
800#92400E
White
7.09
Black
2.96
900#78350F
White
9.07
Black
2.31
950#451A03
White
14.97
Black
1.40

Gamut

How vivid #FEF3C7 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.063; #FEF3C7 uses 92% of it. Display P3, which many recent phones and laptops show, reaches 0.075 there: 19% more.

sRGB
Display P3
Rec. 2020
Dominant wavelength

OKLCH chroma: 0.058
sRGB edge: 0.063
Display P3 edge: 0.075
Rec. 2020 edge: 0.118
Dominant wavelength: 574 nm
Excitation purity: 22%
Chromaticity: x 0.3477, y 0.3730

This color#FEF3C7
Most vivid in sRGB#FFF3C3
Most vivid in Display P3oklch(0.962 0.075 95.6)

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

Use the wider color where screens show it

.accent {
  color: #fef3c7;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 1 0.9548 0.7523); }
}

Mixing

Mixing #FEF3C7

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%#FFF9E3
OKLab50%#FEF9E3
OKLCH50%#FEF9E3

Black #000000

sRGB50%#7F7A64
OKLab50%#635E4C
OKLCH50%#635E4C

Its complement #EFF2FF

sRGB50%#F7F3E3
OKLab50%#F6F3E4
OKLCH50%#FFEDF0

In CSS

/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #fef3c7, white);
color: color-mix(in oklch, #fef3c7 50%, white);

In use

#FEF3C7 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, 4.5:118.85:1 Passes
Link and body-size textText, 4.5:11.11:1 Fails
Large headingLarge text, 3:11.11:1 Fails
Icons, borders and focus ringsNon-text, 3:11.11:1 Fails

For text on this page, the nearest shade that passes is #7F754D 4.61:1

Dark page

Button labelText, 4.5:118.85:1 Passes
Link and body-size textText, 4.5:116.82:1 Passes
Large headingLarge text, 3:116.82:1 Passes
Icons, borders and focus ringsNon-text, 3:116.82:1 Passes

Color vision

How #FEF3C7 looks with color blindness

Tritanopia changes it most, ΔE2000 16.7; deuteranopia changes it least, 0.2.

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

#FCF0C4 ΔE2000 0.7

Imperceptible

Reads as pale muted amber
Deuteranopia

No working green (medium-wavelength) cones

#FFF4C8 ΔE2000 0.2

Imperceptible

Reads as pale muted amber
Tritanopia

No working blue (short-wavelength) cones

#FFECE7 ΔE2000 16.7

Distinct

Reads as pale grayish red
Achromatopsia

No cone color vision; lightness only

#F3F3F3 ΔE2000 15.2

Distinct

Reads as off-white

Pairing check

Checked against its complement, #EFF2FF. Their lightness contrast is only 1.00:1, so where hue collapses, add a label, icon or pattern.

Vision	The pair	ΔE2000	Verdict
Normal vision	#FEF3C7 · #EFF2FF	22.5	Stays distinct
Protanopia	#FCF0C4 · #EFF3FF	21.8	Stays distinct
Deuteranopia	#FFF4C8 · #EEF2FF	22.3	Stays distinct
Tritanopia	#FFECE7 · #ECF4F6	11.9	Stays distinct
Achromatopsia	#F3F3F3 · #F2F2F2	0.2	Easily confused

Harmony

Color harmonies for #FEF3C7

Its complement is #EFF2FF, an off-white.

Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.

Open the Harmony Studio

Base#FEF3C7
Complement#EFF2FF

Complementary

Open in Harmony Studio

−30°#FFEFE1
Base#FEF3C7
+30°#E9FAD0

Analogous

Open in Harmony Studio

Base#FEF3C7
+120°#DEF8FF
+240°#FFECFA

Triadic

Open in Harmony Studio

Base#FEF3C7
+150°#E8F4FF
+210°#F6EFFF

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-100: #fef3c7;
}

Tailwind config

// tailwind.config.js — already built in as amber-100;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        amber: { 100: '#fef3c7' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own amber-100; this pins the v3 value. */
  --color-amber-100: oklch(0.962 0.058 95.6);
}

Design token (W3C DTCG)

{
  "color": {
    "amber-100": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9961, 0.9529, 0.7804],
        "hex": "#fef3c7"
      },
      "$description": "Tailwind CSS v3 amber-100"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let amber100 = Color(.sRGB, red: 0.996, green: 0.953, blue: 0.780, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Amber100 = Color(0xFFFEF3C7)
}

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 #FEF3C7 in the tools

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

Tailwind amber-100 #FEF3C7

#FEF3C7 color codes

Contrast: is #FEF3C7 accessible?

Black text on it

White text on it

As text on black

As text on white

Nearest versions that pass 4.5:1

Adjust #FEF3C7 live

Shades and tints of #FEF3C7

Tailwind CSS v3 amber scale

How vivid #FEF3C7 can get

Mixing #FEF3C7

#FEF3C7 in an interface

How #FEF3C7 looks with color blindness

Protanopia

Deuteranopia

Tritanopia

Achromatopsia

Pairing check

Color harmonies for #FEF3C7

Complementary

Analogous

Triadic

Split-complementary

Design tokens

CSS custom property

Tailwind config

Tailwind v4 theme

Design token (W3C DTCG)

SwiftUI color

Jetpack Compose color

The nearest match in each system

Similar colors

Open #FEF3C7 in the tools