What color is #40293B?

#40293B is a dark, muted magenta. In RGB it is rgb(64, 41, 59), and in HSL hsl(313, 22%, 21%).

Is #40293B accessible as text?

On white, #40293B has a contrast ratio of 13.14:1 (passes WCAG AA for body text); on black it is 1.60:1 (fails). For text placed on #40293B, use white for the best readability.

What is the closest Tailwind color to #40293B?

The nearest Tailwind CSS token is mauve-700 (#463947).

What colors go well with #40293B?

#40293B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #2A412F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40293B below.

Is #40293B good for buttons?

#40293B works well for buttons and highlights, but use white text on #40293B — black text only reaches 1.60:1, below the 4.5:1 needed for normal-size labels.

Is #40293B the same as CSS darkslategray?

No — #40293B 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.

#40293B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #40293B

Not just a swatch — here's how #40293B works with other colors. Named schemes with #40293B in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #40293B Secondary #7D472D Surface #ECD8C1 Accent #464F38 Anchor #592233

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 #40293B Surface #F1E8DC Highlight #F7F0E7 Secondary #BCADA0 Ink #2B2723

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 #40293B Anchor #141210 Accent #D69A52 Secondary #2F252D Surface #F3EDE3

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 #F7F4EF Accent #40293B Secondary #5D545A Support #9C9087 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.

Berry & Cream Lead · 5 colors

Lead #40293B Surface #F4E6D7 Anchor #5D203C Accent #E6C2C5 Secondary #332B2E

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

Build a working theme in the generator →

Color Lab

How #40293B 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 53/100

Neutral

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 65/100

High

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

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

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

Brand distinctiveness 17/100

Very low

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

UI accent fit 31/100

Low

Workable accent with care around contrast.

Surface fit 51/100

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 #40293B

For UI

For branding

For interior

For fashion

People also use #40293B with

Eggplant Bistre Bottle Green 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 13.1:1. Use

Subtle surface Use #DDD0DA for cards and hover fills. Tint 80

Avoid beside #412A34 — 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 #40293B 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: #40293B;
  --color-base-rgb: 64 41 59;
  --color-base-oklch: oklch(31.6% 0.045 334.7);
  --color-50: #F9F6F8;
  --color-100: #EFE6ED;
  --color-200: #DFCDDB;
  --color-300: #C6A9C0;
  --color-400: #AB87A3;
  --color-500: #8E6785;
  --color-600: #6F5369;
  --color-700: #503F4C;
  --color-800: #362B33;
  --color-900: #221C20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F9F6F8',
    100: '#EFE6ED',
    200: '#DFCDDB',
    300: '#C6A9C0',
    400: '#AB87A3',
    500: '#8E6785',
    600: '#6F5369',
    700: '#503F4C',
    800: '#362B33',
    900: '#221C20',
  },
}

$base: #40293B;
$base-ink: #FFFFFF;
$base-50: #F9F6F8;
$base-100: #EFE6ED;
$base-200: #DFCDDB;
$base-300: #C6A9C0;
$base-400: #AB87A3;
$base-500: #8E6785;
$base-600: #6F5369;
$base-700: #503F4C;
$base-800: #362B33;
$base-900: #221C20;
$base-hover: #342130;
$base-subtle: #CDB8C8;

{
    "color": {
        "base": {
            "value": "#40293B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F6F8",
                "type": "color"
            },
            "100": {
                "value": "#EFE6ED",
                "type": "color"
            },
            "200": {
                "value": "#DFCDDB",
                "type": "color"
            },
            "300": {
                "value": "#C6A9C0",
                "type": "color"
            },
            "400": {
                "value": "#AB87A3",
                "type": "color"
            },
            "500": {
                "value": "#8E6785",
                "type": "color"
            },
            "600": {
                "value": "#6F5369",
                "type": "color"
            },
            "700": {
                "value": "#503F4C",
                "type": "color"
            },
            "800": {
                "value": "#362B33",
                "type": "color"
            },
            "900": {
                "value": "#221C20",
                "type": "color"
            }
        }
    }
}