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bg-indigo-100

Tailwind Indigo 100

#E0E7FF·Indigo family·Shade 100

Color Values

HEX
#E0E7FF
RGB
rgb(224, 231, 255)
HSL
hsl(226, 100%, 94%)
OKLCH
oklch(0.930 0.033 273)
CMYK
cmyk(12%, 9%, 0%, 0%)
CSS Variable
var(--color-indigo-100)
Tailwind Class
bg-indigo-100

Accessibility Score

60/100

Good

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

On White

1.23:1

Fail

On Black

17.04:1

AAA
Test in Contrast Checker →

Tailwind Usage — All Utilities

Background

bg-indigo-100

Text

text-indigo-100

Border

border-indigo-100

Ring

ring-indigo-100

Outline

outline-indigo-100

Fill

fill-indigo-100

Stroke

stroke-indigo-100

From (gradient)

from-indigo-100

Via (gradient)

via-indigo-100

To (gradient)

to-indigo-100

Placeholder

placeholder-indigo-100

Caret

caret-indigo-100

Accent

accent-indigo-100

Decoration

decoration-indigo-100

Shadow Color

shadow-indigo-100

Tailwind v3 Config (extend custom color)

// tailwind.config.js module.exports = { theme: { extend: { colors: { 'indigo-100': '#e0e7ff', }, }, }, };

CSS Equivalent

/* Hex */
background-color: #E0E7FF;

/* RGB */
background-color: rgb(224, 231, 255);

/* HSL */
background-color: hsl(226, 100%, 94%);

/* OKLCH (CSS Color Level 4) */
background-color: oklch(0.930 0.033 273);

/* CSS Custom Property (Tailwind v4) */
background-color: var(--color-indigo-100);

/* Gradient example */
background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);

OKLCH — Modern Color Space

Lightness (L)

0.930

93% perceived brightness

Chroma (C)

0.033

Color intensity / saturation

Hue (H)

273°

Angle on perceptual hue wheel

oklch(0.930 0.033 273)

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

Light surface & background

Shade 100 of the Indigo palette

Recommended Uses

  • ✓Card backgrounds
  • ✓Sidebar fills
  • ✓Input field backgrounds
  • ✓Chip & badge backgrounds
  • ✓Skeleton loaders

Avoid

✗Body text on white — insufficient contrast for normal-size text.

Preview

On White

Aa Bb Cc

On Black

Aa Bb Cc

As Background

Aa Bb Cc — #E0E7FF

Indigo Shades

50

100

200

300

400

500

600

700

800

900

950

Similar Tailwind Colors

Perceptually close shades from other Tailwind color families.

Tailwind Blue 100

#DBEAFE

Tailwind Slate 200

#E2E8F0

Tailwind Violet 100

#EDE9FE

Tailwind Gray 200

#E5E7EB

Tailwind Sky 100

#E0F2FE

Tailwind Zinc 200

#E4E4E7

Nearest Named Color

Tailwind Indigo 100

Nearest Tailwind equivalent — #E0E7FF

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 Indigo 100?
Tailwind Indigo 100 has the hex code #E0E7FF. Its RGB value is rgb(224, 231, 255) and its HSL value is hsl(226, 100%, 94%).
What Tailwind utility classes use Indigo 100?
Use bg-indigo-100 for backgrounds, text-indigo-100 for text color, border-indigo-100 for borders, and ring-indigo-100 for focus rings. In Tailwind v4 the CSS variable var(--color-indigo-100) is available natively.
Is Tailwind Indigo 100 WCAG accessible?
Tailwind Indigo 100 achieves a 1.23:1 contrast ratio on white (Fail) and 17.04:1 on black (AAA). Its overall accessibility score is 60/100 (Good).
What is the OKLCH value for Tailwind Indigo 100?
Tailwind Indigo 100 in OKLCH is oklch(0.930 0.033 273) — lightness 0.930, chroma 0.033, hue 273°. OKLCH is a perceptually uniform space supported natively in modern CSS via the `color()` function.
What is Tailwind Indigo 100 used for?
At shade 100, Tailwind Indigo 100 is best described as "Light surface & background". Recommended uses: Card backgrounds, Sidebar fills, Input field backgrounds.
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