What color is #40173F?

#40173F is a very dark purple. In RGB it is rgb(64, 23, 63), and in HSL hsl(301, 47%, 17%).

Is #40173F accessible as text?

On white, #40173F has a contrast ratio of 14.87:1 (passes WCAG AA for body text); on black it is 1.41:1 (fails). For text placed on #40173F, use white for the best readability.

What is the closest Tailwind color to #40173F?

The nearest Tailwind CSS token is fuchsia-950 (#4B004F).

What colors go well with #40173F?

#40173F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #174018. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40173F below.

Is #40173F good for buttons?

#40173F works well for buttons and highlights, but use white text on #40173F — black text only reaches 1.41:1, below the 4.5:1 needed for normal-size labels.

Is #40173F the same as CSS midnightblue?

No — #40173F is not the CSS named color midnightblue, but midnightblue (#191970) 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.

#40173F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #40173F

Not just a swatch — here's how #40173F works with other colors. Named schemes with #40173F in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #40173F Secondary #7D472E Surface #ECD8C1 Accent #34524A Anchor #592234

Russian Violet 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 #40173F Surface #F1E8DC Highlight #F7F0E7 Secondary #BDADA1 Ink #2B2723

Russian Violet 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 #40173F Anchor #141210 Accent #D79A52 Secondary #2F252E Surface #F3EDE3

Russian Violet 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 #F7F4EF Accent #40173F Secondary #584957 Support #9C9087 Ink #18140F

Russian Violet 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 Russian Violet carrying the quiet middle.

Berry & Cream Lead · 5 colors

Lead #40173F Surface #F5E6D7 Anchor #5D203D Accent #E6C2C5 Secondary #332B2E

Russian Violet 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 #40173F 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 54/100

Neutral

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 70/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 74/100

High

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

Brand distinctiveness 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 31/100

Low

Workable accent with care around contrast.

Surface fit 40/100

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 #40173F

For UI

For branding

For interior

For fashion

People also use #40173F with

Russian Violet Oxblood British Racing Green Gainsboro Byzantium

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 14.9:1. Use

Subtle surface Use #E3C6E3 for cards and hover fills. Tint 80

Avoid beside #401731 — 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 #40173F 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: #40173F;
  --color-base-rgb: 64 23 63;
  --color-base-oklch: oklch(28.5% 0.086 328.5);
  --color-50: #FBF3FB;
  --color-100: #F5E0F4;
  --color-200: #E9C3E9;
  --color-300: #D699D5;
  --color-400: #C072BF;
  --color-500: #A451A2;
  --color-600: #7E447D;
  --color-700: #5A345A;
  --color-800: #3C253B;
  --color-900: #251825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#FBF3FB',
    100: '#F5E0F4',
    200: '#E9C3E9',
    300: '#D699D5',
    400: '#C072BF',
    500: '#A451A2',
    600: '#7E447D',
    700: '#5A345A',
    800: '#3C253B',
    900: '#251825',
  },
}

$base: #40173F;
$base-ink: #FFFFFF;
$base-50: #FBF3FB;
$base-100: #F5E0F4;
$base-200: #E9C3E9;
$base-300: #D699D5;
$base-400: #C072BF;
$base-500: #A451A2;
$base-600: #7E447D;
$base-700: #5A345A;
$base-800: #3C253B;
$base-900: #251825;
$base-hover: #331232;
$base-subtle: #D6A9D5;

{
    "color": {
        "base": {
            "value": "#40173F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FBF3FB",
                "type": "color"
            },
            "100": {
                "value": "#F5E0F4",
                "type": "color"
            },
            "200": {
                "value": "#E9C3E9",
                "type": "color"
            },
            "300": {
                "value": "#D699D5",
                "type": "color"
            },
            "400": {
                "value": "#C072BF",
                "type": "color"
            },
            "500": {
                "value": "#A451A2",
                "type": "color"
            },
            "600": {
                "value": "#7E447D",
                "type": "color"
            },
            "700": {
                "value": "#5A345A",
                "type": "color"
            },
            "800": {
                "value": "#3C253B",
                "type": "color"
            },
            "900": {
                "value": "#251825",
                "type": "color"
            }
        }
    }
}