What color is #312166?

#312166 is a dark indigo. In RGB it is rgb(49, 33, 102), and in HSL hsl(254, 51%, 26%).

Is #312166 accessible as text?

On white, #312166 has a contrast ratio of 13.64:1 (passes WCAG AA for body text); on black it is 1.54:1 (fails). For text placed on #312166, use white for the best readability.

What is the closest Tailwind color to #312166?

The nearest Tailwind CSS token is violet-950 (#2F0D68).

What colors go well with #312166?

#312166 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #546420. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #312166 below.

Is #312166 good for buttons?

#312166 works well for buttons and highlights, but use white text on #312166 — black text only reaches 1.54:1, below the 4.5:1 needed for normal-size labels.

Is #312166 the same as CSS midnightblue?

No — #312166 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#312166 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #312166

Not just a swatch — here's how #312166 works with other colors. Named schemes with #312166 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #312166 Anchor #141210 Accent #DB9757 Secondary #282732 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 #312166 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #1E0530

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 #312166 Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #22334A

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

Vintage Leather Lead · 5 colors

Lead #312166 Secondary #7E4633 Surface #EDD8C2 Accent #365247 Anchor #582238

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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #312166 Secondary #54526B Support #9D9088 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 #312166 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 32/100

Cool

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

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 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 74/100

High

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

Brand distinctiveness 44/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 30/100

Low

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

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #312166

For UI

For branding

For interior

For fashion

People also use #312166 with

Classic Blue Byzantium Dark Olive Green Gainsboro Russian Violet

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 13.6:1. Use

Subtle surface Use #D2CBE7 for cards and hover fills. Tint 80

Avoid beside #472064 — 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 #312166 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: #312166;
  --color-base-rgb: 49 33 102;
  --color-base-oklch: oklch(31.1% 0.115 288.5);
  --color-50: #F5F3FC;
  --color-100: #E5E0F6;
  --color-200: #CBC1EB;
  --color-300: #A697D9;
  --color-400: #826FC3;
  --color-500: #624EA7;
  --color-600: #504181;
  --color-700: #3C335C;
  --color-800: #2A243D;
  --color-900: #1B1826;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F5F3FC',
    100: '#E5E0F6',
    200: '#CBC1EB',
    300: '#A697D9',
    400: '#826FC3',
    500: '#624EA7',
    600: '#504181',
    700: '#3C335C',
    800: '#2A243D',
    900: '#1B1826',
  },
}

$base: #312166;
$base-ink: #FFFFFF;
$base-50: #F5F3FC;
$base-100: #E5E0F6;
$base-200: #CBC1EB;
$base-300: #A697D9;
$base-400: #826FC3;
$base-500: #624EA7;
$base-600: #504181;
$base-700: #3C335C;
$base-800: #2A243D;
$base-900: #1B1826;
$base-hover: #271A50;
$base-subtle: #BBB0DC;

{
    "color": {
        "base": {
            "value": "#312166",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F3FC",
                "type": "color"
            },
            "100": {
                "value": "#E5E0F6",
                "type": "color"
            },
            "200": {
                "value": "#CBC1EB",
                "type": "color"
            },
            "300": {
                "value": "#A697D9",
                "type": "color"
            },
            "400": {
                "value": "#826FC3",
                "type": "color"
            },
            "500": {
                "value": "#624EA7",
                "type": "color"
            },
            "600": {
                "value": "#504181",
                "type": "color"
            },
            "700": {
                "value": "#3C335C",
                "type": "color"
            },
            "800": {
                "value": "#2A243D",
                "type": "color"
            },
            "900": {
                "value": "#1B1826",
                "type": "color"
            }
        }
    }
}