What color is #2B4149?

#2B4149 is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(43, 65, 73), and in HSL hsl(196, 26%, 23%).

Is #2B4149 accessible as text?

On white, #2B4149 has a contrast ratio of 10.74:1 (passes WCAG AA for body text); on black it is 1.96:1 (fails). For text placed on #2B4149, use white for the best readability.

What is the closest Tailwind color to #2B4149?

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

What colors go well with #2B4149?

As a neutral, #2B4149 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 #2B4149 the same as CSS darkslategray?

No — #2B4149 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.

#2B4149 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2B4149

Not just a swatch — here's how #2B4149 works with other colors. Named schemes with #2B4149 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2B4149 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1E354A

Charcoal 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 #2B4149 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A5 Anchor #2E3236

Charcoal 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 #2B4149 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #4D6169

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

Vintage Leather Lead · 5 colors

Lead #2B4149 Secondary #6F5116 Surface #E2DCC0 Accent #385244 Anchor #56233E

Charcoal 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 #2B4149 Secondary #5D6568 Support #969386 Ink #16140F

Charcoal 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 Charcoal carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #2B4149 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 41/100

Neutral

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

Softness 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

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 63/100

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 37/100

Low

Workable accent with care around contrast.

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2B4149

For UI

For branding

For interior

For fashion

People also use #2B4149 with

Feldgrau Gunmetal Gray 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 10.7:1. Use

Subtle surface Use #D0DBDF for cards and hover fills. Tint 80

Avoid beside #2B384A — 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 #2B4149 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #2B4149;
  --color-base-rgb: 43 65 73;
  --color-base-oklch: oklch(36.0% 0.031 222.6);
  --color-50: #F5F8FA;
  --color-100: #E5EDF0;
  --color-200: #CCDBE1;
  --color-300: #A7BFC8;
  --color-400: #83A3AF;
  --color-500: #648591;
  --color-600: #516871;
  --color-700: #3D4C52;
  --color-800: #2A3337;
  --color-900: #1B2022;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F5F8FA',
    100: '#E5EDF0',
    200: '#CCDBE1',
    300: '#A7BFC8',
    400: '#83A3AF',
    500: '#648591',
    600: '#516871',
    700: '#3D4C52',
    800: '#2A3337',
    900: '#1B2022',
  },
}

$base: #2B4149;
$base-ink: #FFFFFF;
$base-50: #F5F8FA;
$base-100: #E5EDF0;
$base-200: #CCDBE1;
$base-300: #A7BFC8;
$base-400: #83A3AF;
$base-500: #648591;
$base-600: #516871;
$base-700: #3D4C52;
$base-800: #2A3337;
$base-900: #1B2022;
$base-hover: #23353B;
$base-subtle: #B8CAD0;

{
    "color": {
        "base": {
            "value": "#2B4149",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E5EDF0",
                "type": "color"
            },
            "200": {
                "value": "#CCDBE1",
                "type": "color"
            },
            "300": {
                "value": "#A7BFC8",
                "type": "color"
            },
            "400": {
                "value": "#83A3AF",
                "type": "color"
            },
            "500": {
                "value": "#648591",
                "type": "color"
            },
            "600": {
                "value": "#516871",
                "type": "color"
            },
            "700": {
                "value": "#3D4C52",
                "type": "color"
            },
            "800": {
                "value": "#2A3337",
                "type": "color"
            },
            "900": {
                "value": "#1B2022",
                "type": "color"
            }
        }
    }
}