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bg-gray-800

Tailwind Gray 800

#1F2937·Gray family·Shade 800

Color Values

HEX
#1F2937
RGB
rgb(31, 41, 55)
HSL
hsl(215, 28%, 17%)
OKLCH
oklch(0.278 0.030 257)
CMYK
cmyk(44%, 25%, 0%, 78%)
CSS Variable
var(--color-gray-800)
Tailwind Class
bg-gray-800

Accessibility Score

60/100

Good

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

On White

14.68:1

AAA

On Black

1.43:1

Fail
Test in Contrast Checker →

Tailwind Usage — All Utilities

Background

bg-gray-800

Text

text-gray-800

Border

border-gray-800

Ring

ring-gray-800

Outline

outline-gray-800

Fill

fill-gray-800

Stroke

stroke-gray-800

From (gradient)

from-gray-800

Via (gradient)

via-gray-800

To (gradient)

to-gray-800

Placeholder

placeholder-gray-800

Caret

caret-gray-800

Accent

accent-gray-800

Decoration

decoration-gray-800

Shadow Color

shadow-gray-800

Tailwind v3 Config (extend custom color)

// tailwind.config.js module.exports = { theme: { extend: { colors: { 'gray-800': '#1f2937', }, }, }, };

CSS Equivalent

/* Hex */
background-color: #1F2937;

/* RGB */
background-color: rgb(31, 41, 55);

/* HSL */
background-color: hsl(215, 28%, 17%);

/* OKLCH (CSS Color Level 4) */
background-color: oklch(0.278 0.030 257);

/* CSS Custom Property (Tailwind v4) */
background-color: var(--color-gray-800);

/* Gradient example */
background: linear-gradient(135deg, #f9fafb 0%, #111827 100%);

OKLCH — Modern Color Space

Lightness (L)

0.278

28% perceived brightness

Chroma (C)

0.030

Color intensity / saturation

Hue (H)

257°

Angle on perceptual hue wheel

oklch(0.278 0.030 257)

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

Deep tone for text & UI

Shade 800 of the Gray palette

Recommended Uses

  • ✓Heading text on white
  • ✓Icon fills on light backgrounds
  • ✓Dark sidebar fills
  • ✓Strong badge colors
  • ✓Section dividers

Avoid

✗On colored or dark backgrounds — check contrast ratio first.

Preview

On White

Aa Bb Cc

On Black

Aa Bb Cc

As Background

Aa Bb Cc — #1F2937

Gray Shades

50

100

200

300

400

500

600

700

800

900

950

Similar Tailwind Colors

Perceptually close shades from other Tailwind color families.

Tailwind Slate 800

#1E293B

Tailwind Zinc 800

#27272A

Tailwind Neutral 800

#262626

Tailwind Stone 800

#292524

Tailwind Blue 950

#172554

Tailwind Indigo 950

#1E1B4B

Nearest Named Color

Tailwind Gray 800

Nearest Tailwind equivalent — #1F2937

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 Gray 800?
Tailwind Gray 800 has the hex code #1F2937. Its RGB value is rgb(31, 41, 55) and its HSL value is hsl(215, 28%, 17%).
What Tailwind utility classes use Gray 800?
Use bg-gray-800 for backgrounds, text-gray-800 for text color, border-gray-800 for borders, and ring-gray-800 for focus rings. In Tailwind v4 the CSS variable var(--color-gray-800) is available natively.
Is Tailwind Gray 800 WCAG accessible?
Tailwind Gray 800 achieves a 14.68:1 contrast ratio on white (AAA) and 1.43:1 on black (Fail). Its overall accessibility score is 60/100 (Good).
What is the OKLCH value for Tailwind Gray 800?
Tailwind Gray 800 in OKLCH is oklch(0.278 0.030 257) — lightness 0.278, chroma 0.030, hue 257°. OKLCH is a perceptually uniform space supported natively in modern CSS via the `color()` function.
What is Tailwind Gray 800 used for?
At shade 800, Tailwind Gray 800 is best described as "Deep tone for text & UI". Recommended uses: Heading text on white, Icon fills on light backgrounds, Dark sidebar fills.
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