What color is #252537?

#252537 is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(37, 37, 55), and in HSL hsl(240, 20%, 18%).

Is #252537 accessible as text?

On white, #252537 has a contrast ratio of 15.02:1 (passes WCAG AA for body text); on black it is 1.40:1 (fails). For text placed on #252537, use white for the best readability.

What is the closest Tailwind color to #252537?

The nearest Tailwind CSS token is gray-800 (#1E2939).

What colors go well with #252537?

As a neutral, #252537 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 #252537 the same as CSS midnightblue?

No — #252537 is not the CSS named color midnightblue, but midnightblue (#191970) 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.

#252537 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #252537

Not just a swatch — here's how #252537 works with other colors. Named schemes with #252537 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #252537 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

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 #252537 Secondary #AEB4B8 Surface #F1F2F0 Support #7E92A7 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.

Vintage Leather Lead · 5 colors

Lead #252537 Secondary #7E4533 Surface #EDD7C2 Accent #365247 Anchor #582238

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.

Luxury Packaging Feature · 5 colors

Feature #252537 Anchor #141210 Accent #DB9757 Secondary #272833 Surface #F3ECE3

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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #252537 Secondary #4A4A51 Support #9D9088 Ink #18140F

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 #252537 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 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

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 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 70/100

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 20/100

Very low

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

Surface fit 57/100

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 #252537

For UI

For branding

For interior

For fashion

People also use #252537 with

Charcoal Gunmetal Gray Onyx 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 15.0:1. Use

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

Avoid beside #2B2537 — 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 #252537 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: #252537;
  --color-base-rgb: 37 37 55;
  --color-base-oklch: oklch(27.3% 0.033 284.0);
  --color-50: #F6F6F9;
  --color-100: #E6E6EF;
  --color-200: #CECEDE;
  --color-300: #ABABC5;
  --color-400: #8888AA;
  --color-500: #69698C;
  --color-600: #54546D;
  --color-700: #3F3F4F;
  --color-800: #2C2C35;
  --color-900: #1C1C21;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F6F6F9',
    100: '#E6E6EF',
    200: '#CECEDE',
    300: '#ABABC5',
    400: '#8888AA',
    500: '#69698C',
    600: '#54546D',
    700: '#3F3F4F',
    800: '#2C2C35',
    900: '#1C1C21',
  },
}

$base: #252537;
$base-ink: #FFFFFF;
$base-50: #F6F6F9;
$base-100: #E6E6EF;
$base-200: #CECEDE;
$base-300: #ABABC5;
$base-400: #8888AA;
$base-500: #69698C;
$base-600: #54546D;
$base-700: #3F3F4F;
$base-800: #2C2C35;
$base-900: #1C1C21;
$base-hover: #1D1D2C;
$base-subtle: #B7B7CA;

{
    "color": {
        "base": {
            "value": "#252537",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F6F9",
                "type": "color"
            },
            "100": {
                "value": "#E6E6EF",
                "type": "color"
            },
            "200": {
                "value": "#CECEDE",
                "type": "color"
            },
            "300": {
                "value": "#ABABC5",
                "type": "color"
            },
            "400": {
                "value": "#8888AA",
                "type": "color"
            },
            "500": {
                "value": "#69698C",
                "type": "color"
            },
            "600": {
                "value": "#54546D",
                "type": "color"
            },
            "700": {
                "value": "#3F3F4F",
                "type": "color"
            },
            "800": {
                "value": "#2C2C35",
                "type": "color"
            },
            "900": {
                "value": "#1C1C21",
                "type": "color"
            }
        }
    }
}

Palettes built on #252537

Color Lab

Pairs with #252537

UI roles & guardrails

In real applications

Scales

Every model

Export