What color is #263E48?

#263E48 is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(38, 62, 72), and in HSL hsl(198, 31%, 22%).

Is #263E48 accessible as text?

On white, #263E48 has a contrast ratio of 11.26:1 (passes WCAG AA for body text); on black it is 1.87:1 (fails). For text placed on #263E48, use white for the best readability.

What is the closest Tailwind color to #263E48?

The nearest Tailwind CSS token is gray-700 (#364153).

What colors go well with #263E48?

As a neutral, #263E48 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 #263E48 the same as CSS darkslategray?

No — #263E48 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.

#263E48 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #263E48

Not just a swatch — here's how #263E48 works with other colors. Named schemes with #263E48 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #263E48 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1E344A

Onyx opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #263E48 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A5 Anchor #2E3236

Onyx keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Signal #263E48 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #485E68

Onyx is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Onyx.

Vintage Leather Lead · 5 colors

Lead #263E48 Secondary #6F5116 Surface #E2DCC0 Accent #385244 Anchor #56233D

Onyx plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #263E48 Secondary #596265 Support #969386 Ink #16140F

Onyx 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 Onyx carrying the quiet middle.

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Color Lab

How #263E48 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 40/100

Neutral

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

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

Mid depth — usable as an accent or a muted ground.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 30/100

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 13/100

Very low

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

UI accent fit 36/100

Low

Workable accent with care around contrast.

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 91/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #263E48

For UI

For branding

For interior

For fashion

People also use #263E48 with

Feldgrau Prussian Blue Espresso Platinum 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 11.3:1. Use

Subtle surface Use #CEDBE0 for cards and hover fills. Tint 80

Avoid beside #273349 — 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 #263E48 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #263E48;
  --color-base-rgb: 38 62 72;
  --color-base-oklch: oklch(34.9% 0.035 226.2);
  --color-50: #F5F8FA;
  --color-100: #E4EDF1;
  --color-200: #CADBE3;
  --color-300: #A4C0CC;
  --color-400: #7FA3B3;
  --color-500: #5F8596;
  --color-600: #4E6974;
  --color-700: #3B4C54;
  --color-800: #293338;
  --color-900: #1A2023;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F5F8FA',
    100: '#E4EDF1',
    200: '#CADBE3',
    300: '#A4C0CC',
    400: '#7FA3B3',
    500: '#5F8596',
    600: '#4E6974',
    700: '#3B4C54',
    800: '#293338',
    900: '#1A2023',
  },
}

$base: #263E48;
$base-ink: #FFFFFF;
$base-50: #F5F8FA;
$base-100: #E4EDF1;
$base-200: #CADBE3;
$base-300: #A4C0CC;
$base-400: #7FA3B3;
$base-500: #5F8596;
$base-600: #4E6974;
$base-700: #3B4C54;
$base-800: #293338;
$base-900: #1A2023;
$base-hover: #1F323B;
$base-subtle: #B5C9D1;

{
    "color": {
        "base": {
            "value": "#263E48",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E4EDF1",
                "type": "color"
            },
            "200": {
                "value": "#CADBE3",
                "type": "color"
            },
            "300": {
                "value": "#A4C0CC",
                "type": "color"
            },
            "400": {
                "value": "#7FA3B3",
                "type": "color"
            },
            "500": {
                "value": "#5F8596",
                "type": "color"
            },
            "600": {
                "value": "#4E6974",
                "type": "color"
            },
            "700": {
                "value": "#3B4C54",
                "type": "color"
            },
            "800": {
                "value": "#293338",
                "type": "color"
            },
            "900": {
                "value": "#1A2023",
                "type": "color"
            }
        }
    }
}