What color is #818C8B?

#818C8B is a medium low-chroma cool gray with a subtle cool cast. In RGB it is rgb(129, 140, 139), and in HSL hsl(175, 5%, 53%).

Is #818C8B accessible as text?

On white, #818C8B has a contrast ratio of 3.47:1 (fails WCAG AA for body text); on black it is 6.06:1 (passes). For text placed on #818C8B, use black for the best readability.

What is the closest Tailwind color to #818C8B?

The nearest Tailwind CSS token is neutral-500 (#737373).

What colors go well with #818C8B?

As a neutral, #818C8B pairs cleanly with either light or dark text depending on the surface, and sits under accent hues like blue, violet, emerald or warm orange — use it as a muted neutral, divider, icon or disabled-state color and let the accent carry the color.

Is #818C8B the same as CSS lightslategray?

No — #818C8B is not the CSS named color lightslategray, but lightslategray (#778899) is the closest CSS named color.

#818C8B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #818C8B

Not just a swatch — here's how #818C8B works with other colors. Named schemes with #818C8B in its natural role, and a note on why the supporting colors balance it.

Japanese Sand Base · 5 colors

Base #818C8B Surface #EDEADC Highlight #F5F2E7 Secondary #B5B19F Ink #2A2723

Battleship Grey sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Coastal Morning Lead · 5 colors

Lead #818C8B Accent #A7C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Battleship Grey opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Tech Product Signal · 5 colors

Signal #818C8B Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #A6B1B0

Battleship Grey is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Battleship Grey.

Nordic Calm Accent · 5 colors

Accent #818C8B Secondary #AEB4B8 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

Battleship Grey keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #818C8B Secondary #B1B5B5 Support #979286 Ink #16140F

Battleship Grey is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Battleship Grey carrying the quiet middle.

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Color Lab

How #818C8B actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 47/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 64/100

High

Soft and easy on the eye — gentle backdrops, calm surfaces.

Depth 34/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 5/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 33/100

Low

A faint retro warmth without tipping into sepia.

Luxury 40/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 5/100

Very low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 61/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 97/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #818C8B

For UI

For branding

For interior

For fashion

People also use #818C8B with

Cadet Grey Battleship Grey Platinum Outer Space

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 5.4:1. Use

Subtle surface Use #E6E8E8 for cards and hover fills. Tint 80

Avoid beside #818A8D — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #818C8B at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #818C8B;
  --color-base-rgb: 129 140 139;
  --color-base-oklch: oklch(63.1% 0.013 190.3);
  --color-50: #F7F8F8;
  --color-100: #EAECEB;
  --color-200: #D4D8D8;
  --color-300: #B4BBBA;
  --color-400: #959D9C;
  --color-500: #767F7E;
  --color-600: #5D6564;
  --color-700: #454A4A;
  --color-800: #2F3232;
  --color-900: #1D2020;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  battleship-grey: {
    50: '#F7F8F8',
    100: '#EAECEB',
    200: '#D4D8D8',
    300: '#B4BBBA',
    400: '#959D9C',
    500: '#767F7E',
    600: '#5D6564',
    700: '#454A4A',
    800: '#2F3232',
    900: '#1D2020',
  },
}

$base: #818C8B;
$base-ink: #141310;
$base-50: #F7F8F8;
$base-100: #EAECEB;
$base-200: #D4D8D8;
$base-300: #B4BBBA;
$base-400: #959D9C;
$base-500: #767F7E;
$base-600: #5D6564;
$base-700: #454A4A;
$base-800: #2F3232;
$base-900: #1D2020;
$base-hover: #677271;
$base-subtle: #DADCDC;

{
    "color": {
        "base": {
            "value": "#818C8B",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F8F8",
                "type": "color"
            },
            "100": {
                "value": "#EAECEB",
                "type": "color"
            },
            "200": {
                "value": "#D4D8D8",
                "type": "color"
            },
            "300": {
                "value": "#B4BBBA",
                "type": "color"
            },
            "400": {
                "value": "#959D9C",
                "type": "color"
            },
            "500": {
                "value": "#767F7E",
                "type": "color"
            },
            "600": {
                "value": "#5D6564",
                "type": "color"
            },
            "700": {
                "value": "#454A4A",
                "type": "color"
            },
            "800": {
                "value": "#2F3232",
                "type": "color"
            },
            "900": {
                "value": "#1D2020",
                "type": "color"
            }
        }
    }
}