What color is #403145?

#403145 is a dark, muted purple. In RGB it is rgb(64, 49, 69), and in HSL hsl(285, 17%, 23%).

Is #403145 accessible as text?

On white, #403145 has a contrast ratio of 12.05:1 (passes WCAG AA for body text); on black it is 1.74:1 (fails). For text placed on #403145, use white for the best readability.

What is the closest Tailwind color to #403145?

The nearest Tailwind CSS token is mauve-700 (#463947).

What colors go well with #403145?

#403145 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #364531. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #403145 below.

Is #403145 good for buttons?

#403145 works well for buttons and highlights, but use white text on #403145 — black text only reaches 1.74:1, below the 4.5:1 needed for normal-size labels.

Is #403145 the same as CSS darkslategray?

No — #403145 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.

#403145 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #403145

Not just a swatch — here's how #403145 works with other colors. Named schemes with #403145 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #403145 Secondary #7E462F Surface #ECD8C1 Accent #345249 Anchor #592235

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 #403145 Surface #F1E8DC Highlight #F7F0E7 Secondary #BDADA1 Ink #2C2723

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 #403145 Anchor #141210 Accent #D89954 Secondary #2D262F Surface #F3EDE3

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 #403145 Secondary #605B62 Support #9C9087 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.

Berry & Cream Lead · 5 colors

Lead #403145 Surface #F5E6D7 Anchor #5D203E Accent #E5C2C6 Secondary #332B2F

Onyx sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Build a working theme in the generator →

Color Lab

How #403145 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 49/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

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 40/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 15/100

Very low

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

UI accent fit 35/100

Low

Workable accent with care around contrast.

Surface fit 51/100

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 #403145

For UI

For branding

For interior

For fashion

People also use #403145 with

Charcoal Onyx Brunswick Green 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 12.0:1. Use

Subtle surface Use #DAD3DD for cards and hover fills. Tint 80

Avoid beside #453143 — 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 #403145 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: #403145;
  --color-base-rgb: 64 49 69;
  --color-base-oklch: oklch(33.8% 0.040 317.6);
  --color-50: #F8F6F9;
  --color-100: #ECE7EE;
  --color-200: #DACFDD;
  --color-300: #BDADC3;
  --color-400: #A08BA7;
  --color-500: #826B89;
  --color-600: #66566B;
  --color-700: #4B414E;
  --color-800: #322C35;
  --color-900: #201C21;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F8F6F9',
    100: '#ECE7EE',
    200: '#DACFDD',
    300: '#BDADC3',
    400: '#A08BA7',
    500: '#826B89',
    600: '#66566B',
    700: '#4B414E',
    800: '#322C35',
    900: '#201C21',
  },
}

$base: #403145;
$base-ink: #FFFFFF;
$base-50: #F8F6F9;
$base-100: #ECE7EE;
$base-200: #DACFDD;
$base-300: #BDADC3;
$base-400: #A08BA7;
$base-500: #826B89;
$base-600: #66566B;
$base-700: #4B414E;
$base-800: #322C35;
$base-900: #201C21;
$base-hover: #332737;
$base-subtle: #C8BCCC;

{
    "color": {
        "base": {
            "value": "#403145",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F6F9",
                "type": "color"
            },
            "100": {
                "value": "#ECE7EE",
                "type": "color"
            },
            "200": {
                "value": "#DACFDD",
                "type": "color"
            },
            "300": {
                "value": "#BDADC3",
                "type": "color"
            },
            "400": {
                "value": "#A08BA7",
                "type": "color"
            },
            "500": {
                "value": "#826B89",
                "type": "color"
            },
            "600": {
                "value": "#66566B",
                "type": "color"
            },
            "700": {
                "value": "#4B414E",
                "type": "color"
            },
            "800": {
                "value": "#322C35",
                "type": "color"
            },
            "900": {
                "value": "#201C21",
                "type": "color"
            }
        }
    }
}