What color is #331A6B?

#331A6B is a dark indigo. In RGB it is rgb(51, 26, 107), and in HSL hsl(259, 61%, 26%).

Is #331A6B accessible as text?

On white, #331A6B has a contrast ratio of 13.99:1 (passes WCAG AA for body text); on black it is 1.50:1 (fails). For text placed on #331A6B, use white for the best readability.

What is the closest Tailwind color to #331A6B?

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

What colors go well with #331A6B?

#331A6B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #516B1A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #331A6B below.

Is #331A6B good for buttons?

#331A6B works well for buttons and highlights, but use white text on #331A6B — black text only reaches 1.50:1, below the 4.5:1 needed for normal-size labels.

Is #331A6B the same as CSS midnightblue?

No — #331A6B 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.

#331A6B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #331A6B

Not just a swatch — here's how #331A6B works with other colors. Named schemes with #331A6B in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #331A6B Anchor #141210 Accent #DB9757 Secondary #292732 Surface #F3ECE3

Midnight Blue 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 #331A6B Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #1F0131

Midnight Blue 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 Midnight Blue.

Coastal Morning Lead · 5 colors

Lead #331A6B Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #22334A

Midnight Blue 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 #331A6B Surface #F5E5D7 Anchor #5C2141 Accent #E5C2C8 Secondary #332B2F

Midnight Blue 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 #331A6B Secondary #54506C Support #9D9088 Ink #18140F

Midnight Blue 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 Midnight Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #331A6B 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 31/100

Cool

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 71/100

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 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 73/100

High

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

Brand distinctiveness 51/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 42/100

Moderate

Workable accent with care around contrast.

Surface fit 25/100

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 #331A6B

For UI

For branding

For interior

For fashion

People also use #331A6B with

Egyptian 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 14.0:1. Use

Subtle surface Use #D3C9EA for cards and hover fills. Tint 80

Avoid beside #4E1A6B — 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 #331A6B 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: #331A6B;
  --color-base-rgb: 51 26 107;
  --color-base-oklch: oklch(30.7% 0.131 290.7);
  --color-50: #F5F2FC;
  --color-100: #E6DDF8;
  --color-200: #CDBDEF;
  --color-300: #A990DF;
  --color-400: #8667CB;
  --color-500: #6745B0;
  --color-600: #533B87;
  --color-700: #3E2F60;
  --color-800: #2B223F;
  --color-900: #1C1627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  midnight-blue: {
    50: '#F5F2FC',
    100: '#E6DDF8',
    200: '#CDBDEF',
    300: '#A990DF',
    400: '#8667CB',
    500: '#6745B0',
    600: '#533B87',
    700: '#3E2F60',
    800: '#2B223F',
    900: '#1C1627',
  },
}

$base: #331A6B;
$base-ink: #FFFFFF;
$base-50: #F5F2FC;
$base-100: #E6DDF8;
$base-200: #CDBDEF;
$base-300: #A990DF;
$base-400: #8667CB;
$base-500: #6745B0;
$base-600: #533B87;
$base-700: #3E2F60;
$base-800: #2B223F;
$base-900: #1C1627;
$base-hover: #291555;
$base-subtle: #BDACE1;

{
    "color": {
        "base": {
            "value": "#331A6B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F2FC",
                "type": "color"
            },
            "100": {
                "value": "#E6DDF8",
                "type": "color"
            },
            "200": {
                "value": "#CDBDEF",
                "type": "color"
            },
            "300": {
                "value": "#A990DF",
                "type": "color"
            },
            "400": {
                "value": "#8667CB",
                "type": "color"
            },
            "500": {
                "value": "#6745B0",
                "type": "color"
            },
            "600": {
                "value": "#533B87",
                "type": "color"
            },
            "700": {
                "value": "#3E2F60",
                "type": "color"
            },
            "800": {
                "value": "#2B223F",
                "type": "color"
            },
            "900": {
                "value": "#1C1627",
                "type": "color"
            }
        }
    }
}