What color is #3F5568?

#3F5568 is a dark, muted blue. In RGB it is rgb(63, 85, 104), and in HSL hsl(208, 25%, 33%).

Is #3F5568 accessible as text?

On white, #3F5568 has a contrast ratio of 7.75:1 (passes WCAG AA for body text); on black it is 2.71:1 (fails). For text placed on #3F5568, use white for the best readability.

What is the closest Tailwind color to #3F5568?

The nearest Tailwind CSS token is mist-600 (#4B585B).

What colors go well with #3F5568?

#3F5568 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #69533F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3F5568 below.

Is #3F5568 good for buttons?

#3F5568 works well for buttons and highlights, but use white text on #3F5568 — black text only reaches 2.71:1, below the 4.5:1 needed for normal-size labels.

Is #3F5568 the same as CSS darkslategray?

No — #3F5568 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#3F5568 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3F5568

Not just a swatch — here's how #3F5568 works with other colors. Named schemes with #3F5568 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3F5568 Accent #A5C4C0 Surface #DEDBBF Secondary #9AA0A0 Anchor #20344A

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 #3F5568 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 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 #3F5568 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #627789

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 #3F5568 Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233C

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 #3F5568 Secondary #737B82 Support #969386 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.

Build a working theme in the generator →

Color Lab

How #3F5568 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

Neutral

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

Softness 44/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 53/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 58/100

Moderate

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 58/100

Moderate

Workable accent with care around contrast.

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3F5568

For UI

For branding

For interior

For fashion

People also use #3F5568 with

Viridian Charcoal Coffee 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 7.7:1. Use

Subtle surface Use #D7DDE3 for cards and hover fills. Tint 80

Avoid beside #3F4869 — 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 #3F5568 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: #3F5568;
  --color-base-rgb: 63 85 104;
  --color-base-oklch: oklch(43.9% 0.041 245.0);
  --color-50: #F5F7F9;
  --color-100: #E5EBF0;
  --color-200: #CCD7E0;
  --color-300: #A7B9C8;
  --color-400: #849AAE;
  --color-500: #647C90;
  --color-600: #516270;
  --color-700: #3D4851;
  --color-800: #2A3136;
  --color-900: #1B1F22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  iron-gray: {
    50: '#F5F7F9',
    100: '#E5EBF0',
    200: '#CCD7E0',
    300: '#A7B9C8',
    400: '#849AAE',
    500: '#647C90',
    600: '#516270',
    700: '#3D4851',
    800: '#2A3136',
    900: '#1B1F22',
  },
}

$base: #3F5568;
$base-ink: #FFFFFF;
$base-50: #F5F7F9;
$base-100: #E5EBF0;
$base-200: #CCD7E0;
$base-300: #A7B9C8;
$base-400: #849AAE;
$base-500: #647C90;
$base-600: #516270;
$base-700: #3D4851;
$base-800: #2A3136;
$base-900: #1B1F22;
$base-hover: #324454;
$base-subtle: #C2CCD5;

{
    "color": {
        "base": {
            "value": "#3F5568",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F7F9",
                "type": "color"
            },
            "100": {
                "value": "#E5EBF0",
                "type": "color"
            },
            "200": {
                "value": "#CCD7E0",
                "type": "color"
            },
            "300": {
                "value": "#A7B9C8",
                "type": "color"
            },
            "400": {
                "value": "#849AAE",
                "type": "color"
            },
            "500": {
                "value": "#647C90",
                "type": "color"
            },
            "600": {
                "value": "#516270",
                "type": "color"
            },
            "700": {
                "value": "#3D4851",
                "type": "color"
            },
            "800": {
                "value": "#2A3136",
                "type": "color"
            },
            "900": {
                "value": "#1B1F22",
                "type": "color"
            }
        }
    }
}

Palettes built on #3F5568

Color Lab

Pairs with #3F5568

UI roles & guardrails

In real applications

Scales

Every model

Export