What color is #36313B?

#36313B is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(54, 49, 59), and in HSL hsl(270, 9%, 21%).

Is #36313B accessible as text?

On white, #36313B has a contrast ratio of 12.66:1 (passes WCAG AA for body text); on black it is 1.66:1 (fails). For text placed on #36313B, use white for the best readability.

What is the closest Tailwind color to #36313B?

The nearest Tailwind CSS token is zinc-700 (#3F3F46).

What colors go well with #36313B?

As a neutral, #36313B pairs cleanly with white, off-white and light grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a dark surface or high-contrast base and let the accent carry the color.

Is #36313B the same as CSS darkslategray?

No — #36313B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#36313B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #36313B

Not just a swatch — here's how #36313B works with other colors. Named schemes with #36313B in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #36313B Surface #14161A Highlight #F4F6F8 Secondary #5C6573 Accent #56515B

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

Vintage Leather Lead · 5 colors

Lead #36313B Secondary #7E4631 Surface #EDD8C1 Accent #355249 Anchor #592236

Gunmetal Gray plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Japanese Sand Base · 5 colors

Base #36313B Surface #F2E8DC Highlight #F8F0E7 Secondary #BDADA1 Ink #2C2723

Gunmetal Gray 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.

Berry & Cream Lead · 5 colors

Lead #36313B Surface #F5E6D7 Anchor #5C213F Accent #E5C2C7 Secondary #332B2F

Gunmetal Gray sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #36313B Secondary #5A585C Support #9C9088 Ink #18140F

Gunmetal Gray 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 Gunmetal Gray carrying the quiet middle.

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Color Lab

How #36313B 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 49/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 7/100

Very low

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

UI accent fit 26/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 58/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 98/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #36313B

For UI

For branding

For interior

For fashion

People also use #36313B with

Charcoal Onyx Gainsboro

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

Body text Passes on white at 16px and above. Pass

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

Background Pair with white text at 12.7:1. Use

Subtle surface Use #D7D4D9 for cards and hover fills. Tint 80

Avoid beside #39313A — 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 #36313B 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: #36313B;
  --color-base-rgb: 54 49 59;
  --color-base-oklch: oklch(32.2% 0.019 307.8);
  --color-50: #F7F7F8;
  --color-100: #EBE9ED;
  --color-200: #D6D3DA;
  --color-300: #B8B2BD;
  --color-400: #9992A0;
  --color-500: #7A7282;
  --color-600: #615B67;
  --color-700: #47444B;
  --color-800: #302E33;
  --color-900: #1F1D20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F7F7F8',
    100: '#EBE9ED',
    200: '#D6D3DA',
    300: '#B8B2BD',
    400: '#9992A0',
    500: '#7A7282',
    600: '#615B67',
    700: '#47444B',
    800: '#302E33',
    900: '#1F1D20',
  },
}

$base: #36313B;
$base-ink: #FFFFFF;
$base-50: #F7F7F8;
$base-100: #EBE9ED;
$base-200: #D6D3DA;
$base-300: #B8B2BD;
$base-400: #9992A0;
$base-500: #7A7282;
$base-600: #615B67;
$base-700: #47444B;
$base-800: #302E33;
$base-900: #1F1D20;
$base-hover: #2B272F;
$base-subtle: #C3BEC7;

{
    "color": {
        "base": {
            "value": "#36313B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F7F8",
                "type": "color"
            },
            "100": {
                "value": "#EBE9ED",
                "type": "color"
            },
            "200": {
                "value": "#D6D3DA",
                "type": "color"
            },
            "300": {
                "value": "#B8B2BD",
                "type": "color"
            },
            "400": {
                "value": "#9992A0",
                "type": "color"
            },
            "500": {
                "value": "#7A7282",
                "type": "color"
            },
            "600": {
                "value": "#615B67",
                "type": "color"
            },
            "700": {
                "value": "#47444B",
                "type": "color"
            },
            "800": {
                "value": "#302E33",
                "type": "color"
            },
            "900": {
                "value": "#1F1D20",
                "type": "color"
            }
        }
    }
}