What color is #1F3129?

#1F3129 is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(31, 49, 41), and in HSL hsl(153, 23%, 16%).

Is #1F3129 accessible as text?

On white, #1F3129 has a contrast ratio of 13.73:1 (passes WCAG AA for body text); on black it is 1.53:1 (fails). For text placed on #1F3129, use white for the best readability.

What is the closest Tailwind color to #1F3129?

The nearest Tailwind CSS token is zinc-800 (#27272A).

What colors go well with #1F3129?

As a neutral, #1F3129 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 #1F3129 the same as CSS darkslategray?

No — #1F3129 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.

#1F3129 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1F3129

Not just a swatch — here's how #1F3129 works with other colors. Named schemes with #1F3129 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #1F3129 Secondary #744F1A Surface #E5DBC0 Accent #3B5141 Anchor #5B2320

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 #1F3129 Surface #EDEADC Highlight #F5F1E7 Secondary #B6B09F Ink #2A2723

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.

Luxury Packaging Feature · 5 colors

Feature #1F3129 Anchor #141210 Accent #BDA84C Secondary #202C26 Surface #F1EDE3

Gunmetal Gray carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #1F3129 Anchor #292A2E Secondary #6C6F74 Surface #EBE6DA Accent #061311

Gunmetal Gray adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Gunmetal Gray.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #1F3129 Secondary #4C5350 Support #989286 Ink #17140F

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 #1F3129 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 46/100

Neutral

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

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

Naturalness 27/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

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

Brand distinctiveness 11/100

Very low

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

UI accent fit 23/100

Low

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

Surface fit 57/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 95/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1F3129

For UI

For branding

For interior

For fashion

People also use #1F3129 with

Brunswick Green Gunmetal Gray Graphite Platinum Dark Slate Gray

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 13.7:1. Use

Subtle surface Use #CDDBD5 for cards and hover fills. Tint 80

Avoid beside #1F3230 — 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 #1F3129 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: #1F3129;
  --color-base-rgb: 31 49 41;
  --color-base-oklch: oklch(29.5% 0.028 165.1);
  --color-50: #F5F9F8;
  --color-100: #E6F0EB;
  --color-200: #CDE0D7;
  --color-300: #A9C6B9;
  --color-400: #86AC9B;
  --color-500: #668F7C;
  --color-600: #536F62;
  --color-700: #3E5148;
  --color-800: #2B3631;
  --color-900: #1B221F;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F5F9F8',
    100: '#E6F0EB',
    200: '#CDE0D7',
    300: '#A9C6B9',
    400: '#86AC9B',
    500: '#668F7C',
    600: '#536F62',
    700: '#3E5148',
    800: '#2B3631',
    900: '#1B221F',
  },
}

$base: #1F3129;
$base-ink: #FFFFFF;
$base-50: #F5F9F8;
$base-100: #E6F0EB;
$base-200: #CDE0D7;
$base-300: #A9C6B9;
$base-400: #86AC9B;
$base-500: #668F7C;
$base-600: #536F62;
$base-700: #3E5148;
$base-800: #2B3631;
$base-900: #1B221F;
$base-hover: #192821;
$base-subtle: #B4CAC0;

{
    "color": {
        "base": {
            "value": "#1F3129",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F9F8",
                "type": "color"
            },
            "100": {
                "value": "#E6F0EB",
                "type": "color"
            },
            "200": {
                "value": "#CDE0D7",
                "type": "color"
            },
            "300": {
                "value": "#A9C6B9",
                "type": "color"
            },
            "400": {
                "value": "#86AC9B",
                "type": "color"
            },
            "500": {
                "value": "#668F7C",
                "type": "color"
            },
            "600": {
                "value": "#536F62",
                "type": "color"
            },
            "700": {
                "value": "#3E5148",
                "type": "color"
            },
            "800": {
                "value": "#2B3631",
                "type": "color"
            },
            "900": {
                "value": "#1B221F",
                "type": "color"
            }
        }
    }
}