What color is #37364A?

#37364A is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(55, 54, 74), and in HSL hsl(243, 16%, 25%).

Is #37364A accessible as text?

On white, #37364A has a contrast ratio of 11.74:1 (passes WCAG AA for body text); on black it is 1.79:1 (fails). For text placed on #37364A, use white for the best readability.

What is the closest Tailwind color to #37364A?

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

What colors go well with #37364A?

As a neutral, #37364A 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 #37364A the same as CSS darkslategray?

No — #37364A 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.

#37364A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #37364A

Not just a swatch — here's how #37364A works with other colors. Named schemes with #37364A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #37364A Accent #A5C4C3 Surface #E9D5BF Secondary #9AA0A1 Anchor #22334A

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 #37364A Secondary #AFB4B8 Surface #F1F2F0 Support #7E92A7 Anchor #2E3236

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

Vintage Leather Lead · 5 colors

Lead #37364A Secondary #7E4533 Surface #EDD8C2 Accent #365247 Anchor #582238

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.

Luxury Packaging Feature · 5 colors

Feature #37364A Anchor #141210 Accent #DB9757 Secondary #282832 Surface #F3ECE3

Onyx 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 #F8F4EF Accent #37364A Secondary #5E5D65 Support #9D9088 Ink #18140F

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 #37364A 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 44/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

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 13/100

Very low

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

UI accent fit 35/100

Low

Workable accent with care around contrast.

Surface fit 52/100

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 #37364A

For UI

For branding

For interior

For fashion

People also use #37364A with

Iron Gray Onyx Outer Space 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 11.7:1. Use

Subtle surface Use #D5D4DD for cards and hover fills. Tint 80

Avoid beside #3D364A — 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 #37364A 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: #37364A;
  --color-base-rgb: 55 54 74;
  --color-base-oklch: oklch(34.3% 0.035 286.7);
  --color-50: #F6F6F9;
  --color-100: #E7E7EE;
  --color-200: #D0D0DD;
  --color-300: #AEADC2;
  --color-400: #8D8CA6;
  --color-500: #6E6C88;
  --color-600: #58576B;
  --color-700: #42414E;
  --color-800: #2D2D34;
  --color-900: #1D1C21;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F6F6F9',
    100: '#E7E7EE',
    200: '#D0D0DD',
    300: '#AEADC2',
    400: '#8D8CA6',
    500: '#6E6C88',
    600: '#58576B',
    700: '#42414E',
    800: '#2D2D34',
    900: '#1D1C21',
  },
}

$base: #37364A;
$base-ink: #FFFFFF;
$base-50: #F6F6F9;
$base-100: #E7E7EE;
$base-200: #D0D0DD;
$base-300: #AEADC2;
$base-400: #8D8CA6;
$base-500: #6E6C88;
$base-600: #58576B;
$base-700: #42414E;
$base-800: #2D2D34;
$base-900: #1D1C21;
$base-hover: #2C2B3B;
$base-subtle: #BFBFCD;

{
    "color": {
        "base": {
            "value": "#37364A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F6F9",
                "type": "color"
            },
            "100": {
                "value": "#E7E7EE",
                "type": "color"
            },
            "200": {
                "value": "#D0D0DD",
                "type": "color"
            },
            "300": {
                "value": "#AEADC2",
                "type": "color"
            },
            "400": {
                "value": "#8D8CA6",
                "type": "color"
            },
            "500": {
                "value": "#6E6C88",
                "type": "color"
            },
            "600": {
                "value": "#58576B",
                "type": "color"
            },
            "700": {
                "value": "#42414E",
                "type": "color"
            },
            "800": {
                "value": "#2D2D34",
                "type": "color"
            },
            "900": {
                "value": "#1D1C21",
                "type": "color"
            }
        }
    }
}