What color is #3D3F4E?

#3D3F4E is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(61, 63, 78), and in HSL hsl(233, 12%, 27%).

Is #3D3F4E accessible as text?

On white, #3D3F4E has a contrast ratio of 10.40:1 (passes WCAG AA for body text); on black it is 2.02:1 (fails). For text placed on #3D3F4E, use white for the best readability.

What is the closest Tailwind color to #3D3F4E?

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

What colors go well with #3D3F4E?

As a neutral, #3D3F4E 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 #3D3F4E the same as CSS darkslategray?

No — #3D3F4E 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.

#3D3F4E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3D3F4E

Not just a swatch — here's how #3D3F4E works with other colors. Named schemes with #3D3F4E in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #3D3F4E Secondary #7F4534 Surface #EDD7C2 Accent #365247 Anchor #582239

Charcoal plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Japanese Sand Base · 5 colors

Base #3D3F4E Surface #F2E8DD Highlight #F8F0E7 Secondary #BEADA2 Ink #2C2724

Charcoal sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Luxury Packaging Feature · 5 colors

Feature #3D3F4E Anchor #141210 Accent #DC9758 Secondary #272833 Surface #F3ECE3

Charcoal 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.

Moody Editorial Color · 5 colors

Color #3D3F4E Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #23202A

Charcoal adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #3D3F4E Secondary #65666C Support #9D9088 Ink #18140F

Charcoal 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 Charcoal carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #3D3F4E 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 45/100

Neutral

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

Softness 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 59/100

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 32/100

Low

A faint retro warmth without tipping into sepia.

Luxury 62/100

High

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 38/100

Low

Workable accent with care around contrast.

Surface fit 53/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3D3F4E

For UI

For branding

For interior

For fashion

People also use #3D3F4E with

Feldgrau Charcoal 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 10.4:1. Use

Subtle surface Use #D7D7DD for cards and hover fills. Tint 80

Avoid beside #403D4D — 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 #3D3F4E 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: #3D3F4E;
  --color-base-rgb: 61 63 78;
  --color-base-oklch: oklch(37.2% 0.026 279.1);
  --color-50: #F6F7F8;
  --color-100: #E8E9ED;
  --color-200: #D1D2DB;
  --color-300: #B0B2BF;
  --color-400: #8F91A3;
  --color-500: #707285;
  --color-600: #595B68;
  --color-700: #43444C;
  --color-800: #2E2E33;
  --color-900: #1D1D20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F6F7F8',
    100: '#E8E9ED',
    200: '#D1D2DB',
    300: '#B0B2BF',
    400: '#8F91A3',
    500: '#707285',
    600: '#595B68',
    700: '#43444C',
    800: '#2E2E33',
    900: '#1D1D20',
  },
}

$base: #3D3F4E;
$base-ink: #FFFFFF;
$base-50: #F6F7F8;
$base-100: #E8E9ED;
$base-200: #D1D2DB;
$base-300: #B0B2BF;
$base-400: #8F91A3;
$base-500: #707285;
$base-600: #595B68;
$base-700: #43444C;
$base-800: #2E2E33;
$base-900: #1D1D20;
$base-hover: #30323E;
$base-subtle: #C2C3CC;

{
    "color": {
        "base": {
            "value": "#3D3F4E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F7F8",
                "type": "color"
            },
            "100": {
                "value": "#E8E9ED",
                "type": "color"
            },
            "200": {
                "value": "#D1D2DB",
                "type": "color"
            },
            "300": {
                "value": "#B0B2BF",
                "type": "color"
            },
            "400": {
                "value": "#8F91A3",
                "type": "color"
            },
            "500": {
                "value": "#707285",
                "type": "color"
            },
            "600": {
                "value": "#595B68",
                "type": "color"
            },
            "700": {
                "value": "#43444C",
                "type": "color"
            },
            "800": {
                "value": "#2E2E33",
                "type": "color"
            },
            "900": {
                "value": "#1D1D20",
                "type": "color"
            }
        }
    }
}