What color is #243B34?

#243B34 is a dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(36, 59, 52), and in HSL hsl(162, 24%, 19%).

Is #243B34 accessible as text?

On white, #243B34 has a contrast ratio of 12.00:1 (passes WCAG AA for body text); on black it is 1.75:1 (fails). For text placed on #243B34, use white for the best readability.

What is the closest Tailwind color to #243B34?

The nearest Tailwind CSS token is neutral-700 (#404040).

What colors go well with #243B34?

As a neutral, #243B34 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 #243B34 the same as CSS darkslategray?

No — #243B34 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.

#243B34 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #243B34

Not just a swatch — here's how #243B34 works with other colors. Named schemes with #243B34 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #243B34 Secondary #734F19 Surface #E4DBC0 Accent #3B5141 Anchor #5B231F

Bottle Green 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 #243B34 Surface #EDEADC Highlight #F5F1E7 Secondary #B5B19F Ink #2A2723

Bottle Green 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 #243B34 Anchor #141210 Accent #BCA84C Secondary #1F2C28 Surface #F1EDE3

Bottle Green 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 #243B34 Anchor #292A2E Secondary #6C6F74 Surface #EBE7DA Accent #0B1C1B

Bottle Green 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 Bottle Green.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #243B34 Secondary #555D5A Support #989286 Ink #16140F

Bottle Green 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 Bottle Green carrying the quiet middle.

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Color Lab

How #243B34 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 45/100

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 21/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 32/100

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 12/100

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 54/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 94/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #243B34

For UI

For branding

For interior

For fashion

People also use #243B34 with

Hunter Green Gunmetal Gray Bistre 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 12.0:1. Use

Subtle surface Use #CFDDD9 for cards and hover fills. Tint 80

Avoid beside #253B3C — 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 #243B34 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: #243B34;
  --color-base-rgb: 36 59 52;
  --color-base-oklch: oklch(33.1% 0.032 173.2);
  --color-50: #F5F9F8;
  --color-100: #E5F0ED;
  --color-200: #CCE0DA;
  --color-300: #A8C7BE;
  --color-400: #85ADA1;
  --color-500: #659083;
  --color-600: #527067;
  --color-700: #3E514B;
  --color-800: #2B3633;
  --color-900: #1B2220;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bottle-green: {
    50: '#F5F9F8',
    100: '#E5F0ED',
    200: '#CCE0DA',
    300: '#A8C7BE',
    400: '#85ADA1',
    500: '#659083',
    600: '#527067',
    700: '#3E514B',
    800: '#2B3633',
    900: '#1B2220',
  },
}

$base: #243B34;
$base-ink: #FFFFFF;
$base-50: #F5F9F8;
$base-100: #E5F0ED;
$base-200: #CCE0DA;
$base-300: #A8C7BE;
$base-400: #85ADA1;
$base-500: #659083;
$base-600: #527067;
$base-700: #3E514B;
$base-800: #2B3633;
$base-900: #1B2220;
$base-hover: #1D302A;
$base-subtle: #B6CCC6;

{
    "color": {
        "base": {
            "value": "#243B34",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F9F8",
                "type": "color"
            },
            "100": {
                "value": "#E5F0ED",
                "type": "color"
            },
            "200": {
                "value": "#CCE0DA",
                "type": "color"
            },
            "300": {
                "value": "#A8C7BE",
                "type": "color"
            },
            "400": {
                "value": "#85ADA1",
                "type": "color"
            },
            "500": {
                "value": "#659083",
                "type": "color"
            },
            "600": {
                "value": "#527067",
                "type": "color"
            },
            "700": {
                "value": "#3E514B",
                "type": "color"
            },
            "800": {
                "value": "#2B3633",
                "type": "color"
            },
            "900": {
                "value": "#1B2220",
                "type": "color"
            }
        }
    }
}