What color is #333339?

#333339 is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(51, 51, 57), and in HSL hsl(240, 6%, 21%).

Is #333339 accessible as text?

On white, #333339 has a contrast ratio of 12.55:1 (passes WCAG AA for body text); on black it is 1.67:1 (fails). For text placed on #333339, use white for the best readability.

What is the closest Tailwind color to #333339?

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

What colors go well with #333339?

As a neutral, #333339 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 #333339 the same as CSS darkslategray?

No — #333339 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.

#333339 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #333339

Not just a swatch — here's how #333339 works with other colors. Named schemes with #333339 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #333339 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #535359

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 #333339 Secondary #7E4533 Surface #EDD8C2 Accent #365247 Anchor #582238

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 #333339 Surface #F2E8DD Highlight #F8F0E7 Secondary #BEADA2 Ink #2C2724

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 #333339 Anchor #141210 Accent #DB9757 Secondary #282833 Surface #F3ECE3

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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #333339 Secondary #59595B Support #9D9088 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 #333339 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 48/100

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 26/100

Low

A faint retro warmth without tipping into sepia.

Luxury 64/100

High

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

Brand distinctiveness 4/100

Very low

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

UI accent fit 24/100

Low

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

Surface fit 61/100

High

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

Print safety 99/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #333339

For UI

For branding

For interior

For fashion

People also use #333339 with

Outer Space Onyx Gainsboro Charcoal

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 12.5:1. Use

Subtle surface Use #D5D5D8 for cards and hover fills. Tint 80

Avoid beside #343239 — 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 #333339 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: #333339;
  --color-base-rgb: 51 51 57;
  --color-base-oklch: oklch(32.3% 0.011 285.8);
  --color-50: #F7F7F8;
  --color-100: #E9E9EC;
  --color-200: #D4D4D9;
  --color-300: #B4B4BB;
  --color-400: #94949E;
  --color-500: #757580;
  --color-600: #5D5D65;
  --color-700: #45454A;
  --color-800: #2F2F32;
  --color-900: #1D1D20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F7F7F8',
    100: '#E9E9EC',
    200: '#D4D4D9',
    300: '#B4B4BB',
    400: '#94949E',
    500: '#757580',
    600: '#5D5D65',
    700: '#45454A',
    800: '#2F2F32',
    900: '#1D1D20',
  },
}

$base: #333339;
$base-ink: #FFFFFF;
$base-50: #F7F7F8;
$base-100: #E9E9EC;
$base-200: #D4D4D9;
$base-300: #B4B4BB;
$base-400: #94949E;
$base-500: #757580;
$base-600: #5D5D65;
$base-700: #45454A;
$base-800: #2F2F32;
$base-900: #1D1D20;
$base-hover: #28282D;
$base-subtle: #C0C0C5;

{
    "color": {
        "base": {
            "value": "#333339",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F7F8",
                "type": "color"
            },
            "100": {
                "value": "#E9E9EC",
                "type": "color"
            },
            "200": {
                "value": "#D4D4D9",
                "type": "color"
            },
            "300": {
                "value": "#B4B4BB",
                "type": "color"
            },
            "400": {
                "value": "#94949E",
                "type": "color"
            },
            "500": {
                "value": "#757580",
                "type": "color"
            },
            "600": {
                "value": "#5D5D65",
                "type": "color"
            },
            "700": {
                "value": "#45454A",
                "type": "color"
            },
            "800": {
                "value": "#2F2F32",
                "type": "color"
            },
            "900": {
                "value": "#1D1D20",
                "type": "color"
            }
        }
    }
}

Palettes built on #333339

Color Lab

Pairs with #333339

UI roles & guardrails

In real applications

Scales

Every model

Export