What color is #3C3C45?

#3C3C45 is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(60, 60, 69), and in HSL hsl(240, 7%, 25%).

Is #3C3C45 accessible as text?

On white, #3C3C45 has a contrast ratio of 10.91:1 (passes WCAG AA for body text); on black it is 1.92:1 (fails). For text placed on #3C3C45, use white for the best readability.

What is the closest Tailwind color to #3C3C45?

The nearest Tailwind CSS token is zinc-700 (#3F3F46).

What colors go well with #3C3C45?

As a neutral, #3C3C45 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 #3C3C45 the same as CSS darkslategray?

No — #3C3C45 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.

#3C3C45 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3C3C45

Not just a swatch — here's how #3C3C45 works with other colors. Named schemes with #3C3C45 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #3C3C45 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #5C5D65

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

Vintage Leather Lead · 5 colors

Lead #3C3C45 Secondary #7E4533 Surface #EDD8C2 Accent #365247 Anchor #582238

Onyx 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 #3C3C45 Surface #F2E8DD Highlight #F8F0E7 Secondary #BEADA2 Ink #2C2724

Onyx 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 #3C3C45 Anchor #141210 Accent #DB9757 Secondary #282833 Surface #F3ECE3

Onyx 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 #3C3C45 Secondary #636366 Support #9D9088 Ink #18140F

Onyx 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 Onyx carrying the quiet middle.

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Color Lab

How #3C3C45 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 47/100

Neutral

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

Softness 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

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 30/100

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 6/100

Very low

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

UI accent fit 32/100

Low

Workable accent with care around contrast.

Surface fit 57/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 98/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3C3C45

For UI

For branding

For interior

For fashion

People also use #3C3C45 with

Iron Gray Onyx Taupe Gainsboro Charcoal

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 10.9:1. Use

Subtle surface Use #D7D7DB for cards and hover fills. Tint 80

Avoid beside #3E3B44 — 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 #3C3C45 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #3C3C45;
  --color-base-rgb: 60 60 69;
  --color-base-oklch: oklch(36.0% 0.015 285.6);
  --color-50: #F7F7F8;
  --color-100: #E9E9EC;
  --color-200: #D3D3D9;
  --color-300: #B3B3BC;
  --color-400: #93939F;
  --color-500: #747481;
  --color-600: #5D5D65;
  --color-700: #45454A;
  --color-800: #2F2F32;
  --color-900: #1D1D20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F7F7F8',
    100: '#E9E9EC',
    200: '#D3D3D9',
    300: '#B3B3BC',
    400: '#93939F',
    500: '#747481',
    600: '#5D5D65',
    700: '#45454A',
    800: '#2F2F32',
    900: '#1D1D20',
  },
}

$base: #3C3C45;
$base-ink: #FFFFFF;
$base-50: #F7F7F8;
$base-100: #E9E9EC;
$base-200: #D3D3D9;
$base-300: #B3B3BC;
$base-400: #93939F;
$base-500: #747481;
$base-600: #5D5D65;
$base-700: #45454A;
$base-800: #2F2F32;
$base-900: #1D1D20;
$base-hover: #2F2F37;
$base-subtle: #C3C3C9;

{
    "color": {
        "base": {
            "value": "#3C3C45",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F7F8",
                "type": "color"
            },
            "100": {
                "value": "#E9E9EC",
                "type": "color"
            },
            "200": {
                "value": "#D3D3D9",
                "type": "color"
            },
            "300": {
                "value": "#B3B3BC",
                "type": "color"
            },
            "400": {
                "value": "#93939F",
                "type": "color"
            },
            "500": {
                "value": "#747481",
                "type": "color"
            },
            "600": {
                "value": "#5D5D65",
                "type": "color"
            },
            "700": {
                "value": "#45454A",
                "type": "color"
            },
            "800": {
                "value": "#2F2F32",
                "type": "color"
            },
            "900": {
                "value": "#1D1D20",
                "type": "color"
            }
        }
    }
}