What color is #425657?

#425657 is a dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(66, 86, 87), and in HSL hsl(183, 14%, 30%).

Is #425657 accessible as text?

On white, #425657 has a contrast ratio of 7.78:1 (passes WCAG AA for body text); on black it is 2.70:1 (fails). For text placed on #425657, use white for the best readability.

What is the closest Tailwind color to #425657?

The nearest Tailwind CSS token is neutral-600 (#525252).

What colors go well with #425657?

As a neutral, #425657 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 #425657 the same as CSS darkslategray?

No — #425657 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.

#425657 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #425657

Not just a swatch — here's how #425657 works with other colors. Named schemes with #425657 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #425657 Accent #A6C4BD Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Iron 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 #425657 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Iron 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 #425657 Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #657879

Iron 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 Iron Gray.

Vintage Leather Lead · 5 colors

Lead #425657 Secondary #715017 Surface #E3DCC0 Accent #395143 Anchor #552340

Iron 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 #425657 Secondary #747B7B Support #979286 Ink #16140F

Iron 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 Iron Gray carrying the quiet middle.

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Color Lab

How #425657 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 45/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 53/100

Moderate

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

Naturalness 4/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 56/100

Moderate

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

Brand distinctiveness 10/100

Very low

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

UI accent fit 50/100

Moderate

Workable accent with care around contrast.

Surface fit 49/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 94/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #425657

For UI

For branding

For interior

For fashion

People also use #425657 with

Dim Gray Outer Space Eggplant Platinum

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 7.8:1. Use

Subtle surface Use #D8DFDF for cards and hover fills. Tint 80

Avoid beside #424F57 — 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 #425657 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: #425657;
  --color-base-rgb: 66 86 87;
  --color-base-oklch: oklch(43.7% 0.025 200.1);
  --color-50: #F6F8F9;
  --color-100: #E8EDEE;
  --color-200: #D1DBDC;
  --color-300: #AFC0C1;
  --color-400: #8DA3A5;
  --color-500: #6E8587;
  --color-600: #58696A;
  --color-700: #424C4D;
  --color-800: #2D3334;
  --color-900: #1D2020;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  iron-gray: {
    50: '#F6F8F9',
    100: '#E8EDEE',
    200: '#D1DBDC',
    300: '#AFC0C1',
    400: '#8DA3A5',
    500: '#6E8587',
    600: '#58696A',
    700: '#424C4D',
    800: '#2D3334',
    900: '#1D2020',
  },
}

$base: #425657;
$base-ink: #FFFFFF;
$base-50: #F6F8F9;
$base-100: #E8EDEE;
$base-200: #D1DBDC;
$base-300: #AFC0C1;
$base-400: #8DA3A5;
$base-500: #6E8587;
$base-600: #58696A;
$base-700: #424C4D;
$base-800: #2D3334;
$base-900: #1D2020;
$base-hover: #354546;
$base-subtle: #C4CFCF;

{
    "color": {
        "base": {
            "value": "#425657",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F8F9",
                "type": "color"
            },
            "100": {
                "value": "#E8EDEE",
                "type": "color"
            },
            "200": {
                "value": "#D1DBDC",
                "type": "color"
            },
            "300": {
                "value": "#AFC0C1",
                "type": "color"
            },
            "400": {
                "value": "#8DA3A5",
                "type": "color"
            },
            "500": {
                "value": "#6E8587",
                "type": "color"
            },
            "600": {
                "value": "#58696A",
                "type": "color"
            },
            "700": {
                "value": "#424C4D",
                "type": "color"
            },
            "800": {
                "value": "#2D3334",
                "type": "color"
            },
            "900": {
                "value": "#1D2020",
                "type": "color"
            }
        }
    }
}

Palettes built on #425657

Color Lab

Pairs with #425657

UI roles & guardrails

In real applications

Scales

Every model

Export