What color is #13373E?

#13373E is a very dark cyan. In RGB it is rgb(19, 55, 62), and in HSL hsl(190, 53%, 16%).

Is #13373E accessible as text?

On white, #13373E has a contrast ratio of 12.78:1 (passes WCAG AA for body text); on black it is 1.64:1 (fails). For text placed on #13373E, use white for the best readability.

What is the closest Tailwind color to #13373E?

The nearest Tailwind CSS token is cyan-950 (#053345).

What colors go well with #13373E?

#13373E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3E1A13. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #13373E below.

Is #13373E good for buttons?

#13373E works well for buttons and highlights, but use white text on #13373E — black text only reaches 1.64:1, below the 4.5:1 needed for normal-size labels.

Is #13373E the same as CSS darkslategray?

No — #13373E is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#13373E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #13373E

Not just a swatch — here's how #13373E works with other colors. Named schemes with #13373E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #13373E Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1E3549

Gunmetal Gray 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 #13373E Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Gunmetal Gray 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 #13373E Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #37575D

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

Vintage Leather Lead · 5 colors

Lead #13373E Secondary #705117 Surface #E3DCC0 Accent #395143 Anchor #56233F

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #13373E Secondary #4D595B 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.

Build a working theme in the generator →

Color Lab

How #13373E 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 38/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 65/100

High

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

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 16/100

Very low

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

UI accent fit 30/100

Low

Workable accent with care around contrast.

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #13373E

For UI

For branding

For interior

For fashion

People also use #13373E with

Hunter Green Navy Oxblood 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 12.8:1. Use

Subtle surface Use #C4DFE5 for cards and hover fills. Tint 80

Avoid beside #13293E — 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 #13373E 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: #13373E;
  --color-base-rgb: 19 55 62;
  --color-base-oklch: oklch(31.4% 0.043 212.4);
  --color-50: #F3FAFC;
  --color-100: #DFF2F6;
  --color-200: #C1E5EC;
  --color-300: #95CEDA;
  --color-400: #6DB6C5;
  --color-500: #4C9AA9;
  --color-600: #407782;
  --color-700: #32565D;
  --color-800: #24393D;
  --color-900: #172326;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F3FAFC',
    100: '#DFF2F6',
    200: '#C1E5EC',
    300: '#95CEDA',
    400: '#6DB6C5',
    500: '#4C9AA9',
    600: '#407782',
    700: '#32565D',
    800: '#24393D',
    900: '#172326',
  },
}

$base: #13373E;
$base-ink: #FFFFFF;
$base-50: #F3FAFC;
$base-100: #DFF2F6;
$base-200: #C1E5EC;
$base-300: #95CEDA;
$base-400: #6DB6C5;
$base-500: #4C9AA9;
$base-600: #407782;
$base-700: #32565D;
$base-800: #24393D;
$base-900: #172326;
$base-hover: #0F2C32;
$base-subtle: #A5D0D9;

{
    "color": {
        "base": {
            "value": "#13373E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FAFC",
                "type": "color"
            },
            "100": {
                "value": "#DFF2F6",
                "type": "color"
            },
            "200": {
                "value": "#C1E5EC",
                "type": "color"
            },
            "300": {
                "value": "#95CEDA",
                "type": "color"
            },
            "400": {
                "value": "#6DB6C5",
                "type": "color"
            },
            "500": {
                "value": "#4C9AA9",
                "type": "color"
            },
            "600": {
                "value": "#407782",
                "type": "color"
            },
            "700": {
                "value": "#32565D",
                "type": "color"
            },
            "800": {
                "value": "#24393D",
                "type": "color"
            },
            "900": {
                "value": "#172326",
                "type": "color"
            }
        }
    }
}