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bg-yellow-400

Tailwind Yellow 400

#FACC15·Yellow family·Shade 400

Color Values

HEX
#FACC15
RGB
rgb(250, 204, 21)
HSL
hsl(48, 96%, 53%)
OKLCH
oklch(0.861 0.173 92)
CMYK
cmyk(0%, 18%, 92%, 2%)
CSS Variable
var(--color-yellow-400)
Tailwind Class
bg-yellow-400

Accessibility Score

60/100

Good

Based on WCAG 2.1 contrast ratios against white and black backgrounds.

On White

1.53:1

Fail

On Black

13.71:1

AAA
Test in Contrast Checker →

Tailwind Usage — All Utilities

Background

bg-yellow-400

Text

text-yellow-400

Border

border-yellow-400

Ring

ring-yellow-400

Outline

outline-yellow-400

Fill

fill-yellow-400

Stroke

stroke-yellow-400

From (gradient)

from-yellow-400

Via (gradient)

via-yellow-400

To (gradient)

to-yellow-400

Placeholder

placeholder-yellow-400

Caret

caret-yellow-400

Accent

accent-yellow-400

Decoration

decoration-yellow-400

Shadow Color

shadow-yellow-400

Tailwind v3 Config (extend custom color)

// tailwind.config.js module.exports = { theme: { extend: { colors: { 'yellow-400': '#facc15', }, }, }, };

CSS Equivalent

/* Hex */
background-color: #FACC15;

/* RGB */
background-color: rgb(250, 204, 21);

/* HSL */
background-color: hsl(48, 96%, 53%);

/* OKLCH (CSS Color Level 4) */
background-color: oklch(0.861 0.173 92);

/* CSS Custom Property (Tailwind v4) */
background-color: var(--color-yellow-400);

/* Gradient example */
background: linear-gradient(135deg, #fefce8 0%, #eab308 100%);

OKLCH — Modern Color Space

Lightness (L)

0.861

86% perceived brightness

Chroma (C)

0.173

Color intensity / saturation

Hue (H)

92°

Angle on perceptual hue wheel

oklch(0.861 0.173 92)

OKLCH is a perceptually uniform color space in CSS Color Level 4. Unlike HSL, equal steps in L produce equal perceived lightness changes — making it ideal for building accessible, harmonious design system scales.

Design Recommendations

Mid-tone accent

Shade 400 of the Yellow palette

Recommended Uses

  • ✓Icon fills on white
  • ✓Secondary buttons (large text)
  • ✓Chart & data visualization bars
  • ✓Decorative UI elements

Avoid

✗Body text on white — often fails WCAG AA for normal text.

Preview

On White

Aa Bb Cc

On Black

Aa Bb Cc

As Background

Aa Bb Cc — #FACC15

Yellow Shades

50

100

200

300

400

500

600

700

800

900

950

Similar Tailwind Colors

Perceptually close shades from other Tailwind color families.

Tailwind Amber 400

#FBBF24

Tailwind Amber 300

#FCD34D

Tailwind Orange 300

#FDBA74

Tailwind Amber 500

#F59E0B

Tailwind Amber 200

#FDE68A

Tailwind Orange 400

#FB923C

Nearest Named Color

Tailwind Yellow 400

Nearest Tailwind equivalent — #FACC15

Design & Accessibility Guides

Guide

Building an Accessible Color System

Design Systems · 10 min read

Guide

WCAG Contrast Ratios Explained

WCAG · 8 min read

Guide

WCAG AA vs AAA: Which Standard Should You Target?

WCAG · 7 min read

Frequently Asked Questions

What is the hex code for Tailwind Yellow 400?
Tailwind Yellow 400 has the hex code #FACC15. Its RGB value is rgb(250, 204, 21) and its HSL value is hsl(48, 96%, 53%).
What Tailwind utility classes use Yellow 400?
Use bg-yellow-400 for backgrounds, text-yellow-400 for text color, border-yellow-400 for borders, and ring-yellow-400 for focus rings. In Tailwind v4 the CSS variable var(--color-yellow-400) is available natively.
Is Tailwind Yellow 400 WCAG accessible?
Tailwind Yellow 400 achieves a 1.53:1 contrast ratio on white (Fail) and 13.71:1 on black (AAA). Its overall accessibility score is 60/100 (Good).
What is the OKLCH value for Tailwind Yellow 400?
Tailwind Yellow 400 in OKLCH is oklch(0.861 0.173 92) — lightness 0.861, chroma 0.173, hue 92°. OKLCH is a perceptually uniform space supported natively in modern CSS via the `color()` function.
What is Tailwind Yellow 400 used for?
At shade 400, Tailwind Yellow 400 is best described as "Mid-tone accent". Recommended uses: Icon fills on white, Secondary buttons (large text), Chart & data visualization bars.
← All Tailwind Colors