What color is #3D0366?

#3D0366 is a dark, vivid violet. In RGB it is rgb(61, 3, 102), and in HSL hsl(275, 94%, 21%).

Is #3D0366 accessible as text?

On white, #3D0366 has a contrast ratio of 14.96:1 (passes WCAG AA for body text); on black it is 1.40:1 (fails). For text placed on #3D0366, use white for the best readability.

What is the closest Tailwind color to #3D0366?

The nearest Tailwind CSS token is purple-950 (#3C0366).

What colors go well with #3D0366?

#3D0366 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #2D6803. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3D0366 below.

Is #3D0366 good for buttons?

#3D0366 works well for buttons and highlights, but use white text on #3D0366 — black text only reaches 1.40:1, below the 4.5:1 needed for normal-size labels.

Is #3D0366 the same as CSS indigo?

No — #3D0366 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#3D0366 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3D0366

Not just a swatch — here's how #3D0366 works with other colors. Named schemes with #3D0366 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #3D0366 Anchor #141210 Accent #D99855 Secondary #2B2731 Surface #F3ECE3

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.

Moody Editorial Color · 5 colors

Color #3D0366 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #22002A

Russian Violet 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 Russian Violet.

Coastal Morning Lead · 5 colors

Lead #3D0366 Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334B

Russian Violet opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Berry & Cream Lead · 5 colors

Lead #3D0366 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C7 Secondary #332B2F

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #3D0366 Secondary #564968 Support #9C9088 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.

Build a working theme in the generator →

Color Lab

How #3D0366 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

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 72/100

High

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

Brand distinctiveness 57/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 38/100

Low

Workable accent with care around contrast.

Surface fit 21/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3D0366

For UI

For branding

For interior

For fashion

People also use #3D0366 with

Phthalo Blue Tyrian Purple Dark Green Gainsboro Onyx

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 15.0:1. Use

Subtle surface Use #DBBBF2 for cards and hover fills. Tint 80

Avoid beside #5F0368 — 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 #3D0366 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: #3D0366;
  --color-base-rgb: 61 3 102;
  --color-base-oklch: oklch(29.2% 0.149 303.7);
  --color-50: #F9F0FE;
  --color-100: #EED8FD;
  --color-200: #DCB1FC;
  --color-300: #C27BF4;
  --color-400: #A64BE7;
  --color-500: #8828CD;
  --color-600: #6B269B;
  --color-700: #4E216D;
  --color-800: #341A47;
  --color-900: #21122B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F9F0FE',
    100: '#EED8FD',
    200: '#DCB1FC',
    300: '#C27BF4',
    400: '#A64BE7',
    500: '#8828CD',
    600: '#6B269B',
    700: '#4E216D',
    800: '#341A47',
    900: '#21122B',
  },
}

$base: #3D0366;
$base-ink: #FFFFFF;
$base-50: #F9F0FE;
$base-100: #EED8FD;
$base-200: #DCB1FC;
$base-300: #C27BF4;
$base-400: #A64BE7;
$base-500: #8828CD;
$base-600: #6B269B;
$base-700: #4E216D;
$base-800: #341A47;
$base-900: #21122B;
$base-hover: #320353;
$base-subtle: #CA97EE;

{
    "color": {
        "base": {
            "value": "#3D0366",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F0FE",
                "type": "color"
            },
            "100": {
                "value": "#EED8FD",
                "type": "color"
            },
            "200": {
                "value": "#DCB1FC",
                "type": "color"
            },
            "300": {
                "value": "#C27BF4",
                "type": "color"
            },
            "400": {
                "value": "#A64BE7",
                "type": "color"
            },
            "500": {
                "value": "#8828CD",
                "type": "color"
            },
            "600": {
                "value": "#6B269B",
                "type": "color"
            },
            "700": {
                "value": "#4E216D",
                "type": "color"
            },
            "800": {
                "value": "#341A47",
                "type": "color"
            },
            "900": {
                "value": "#21122B",
                "type": "color"
            }
        }
    }
}