What color is #263A37?

#263A37 is a dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(38, 58, 55), and in HSL hsl(171, 21%, 19%).

Is #263A37 accessible as text?

On white, #263A37 has a contrast ratio of 12.05:1 (passes WCAG AA for body text); on black it is 1.74:1 (fails). For text placed on #263A37, use white for the best readability.

What is the closest Tailwind color to #263A37?

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

What colors go well with #263A37?

As a neutral, #263A37 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 #263A37 the same as CSS darkslategray?

No — #263A37 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.

#263A37 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #263A37

Not just a swatch — here's how #263A37 works with other colors. Named schemes with #263A37 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #263A37 Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #5B241E

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 #263A37 Surface #EDEADC Highlight #F5F1E7 Secondary #B5B19F 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 #263A37 Anchor #141210 Accent #BAA94D Secondary #1E2C2A 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 #263A37 Anchor #292A2E Secondary #6D6E74 Surface #EBE7DA Accent #0E1B1C

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 #263A37 Secondary #565D5B Support #979286 Ink #16140F

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 #263A37 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 11/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 29/100

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 10/100

Very low

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

UI accent fit 29/100

Low

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

Surface fit 56/100

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 #263A37

For UI

For branding

For interior

For fashion

People also use #263A37 with

Dark Slate Gray Gunmetal Gray Bistre Platinum

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 #CFDCDA for cards and hover fills. Tint 80

Avoid beside #26373B — 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 #263A37 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: #263A37;
  --color-base-rgb: 38 58 55;
  --color-base-oklch: oklch(33.0% 0.026 184.4);
  --color-50: #F6F9F9;
  --color-100: #E6EFEE;
  --color-200: #CEDFDC;
  --color-300: #AAC5C1;
  --color-400: #88AAA5;
  --color-500: #688D87;
  --color-600: #546E6A;
  --color-700: #3F504D;
  --color-800: #2B3534;
  --color-900: #1C2121;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F6F9F9',
    100: '#E6EFEE',
    200: '#CEDFDC',
    300: '#AAC5C1',
    400: '#88AAA5',
    500: '#688D87',
    600: '#546E6A',
    700: '#3F504D',
    800: '#2B3534',
    900: '#1C2121',
  },
}

$base: #263A37;
$base-ink: #FFFFFF;
$base-50: #F6F9F9;
$base-100: #E6EFEE;
$base-200: #CEDFDC;
$base-300: #AAC5C1;
$base-400: #88AAA5;
$base-500: #688D87;
$base-600: #546E6A;
$base-700: #3F504D;
$base-800: #2B3534;
$base-900: #1C2121;
$base-hover: #1F2F2C;
$base-subtle: #B7CBC8;

{
    "color": {
        "base": {
            "value": "#263A37",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F9F9",
                "type": "color"
            },
            "100": {
                "value": "#E6EFEE",
                "type": "color"
            },
            "200": {
                "value": "#CEDFDC",
                "type": "color"
            },
            "300": {
                "value": "#AAC5C1",
                "type": "color"
            },
            "400": {
                "value": "#88AAA5",
                "type": "color"
            },
            "500": {
                "value": "#688D87",
                "type": "color"
            },
            "600": {
                "value": "#546E6A",
                "type": "color"
            },
            "700": {
                "value": "#3F504D",
                "type": "color"
            },
            "800": {
                "value": "#2B3534",
                "type": "color"
            },
            "900": {
                "value": "#1C2121",
                "type": "color"
            }
        }
    }
}