What color is #311237?

#311237 is a very dark purple. In RGB it is rgb(49, 18, 55), and in HSL hsl(290, 51%, 14%).

Is #311237 accessible as text?

On white, #311237 has a contrast ratio of 16.51:1 (passes WCAG AA for body text); on black it is 1.27:1 (fails). For text placed on #311237, use white for the best readability.

What is the closest Tailwind color to #311237?

The nearest Tailwind CSS token is mauve-800 (#2A212C).

What colors go well with #311237?

#311237 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #183611. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #311237 below.

Is #311237 good for buttons?

#311237 works well for buttons and highlights, but use white text on #311237 — black text only reaches 1.27:1, below the 4.5:1 needed for normal-size labels.

Is #311237 the same as CSS midnightblue?

No — #311237 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.

#311237 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #311237

Not just a swatch — here's how #311237 works with other colors. Named schemes with #311237 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #311237 Secondary #7E472F Surface #ECD8C1 Accent #345249 Anchor #592235

Deep Purple 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 #311237 Surface #F1E8DC Highlight #F7F0E7 Secondary #BDADA1 Ink #2C2723

Deep Purple 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 #311237 Anchor #141210 Accent #D89953 Secondary #2E262F Surface #F3EDE3

Deep Purple 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 #311237 Secondary #4B404D Support #9C9087 Ink #18140F

Deep Purple 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 Deep Purple carrying the quiet middle.

Berry & Cream Lead · 5 colors

Lead #311237 Surface #F5E6D7 Anchor #5D203E Accent #E5C2C6 Secondary #332B2E

Deep Purple 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 #311237 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 50/100

Neutral

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

Softness 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 74/100

High

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

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 76/100

High

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

Brand distinctiveness 30/100

Low

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

UI accent fit 21/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 91/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #311237

For UI

For branding

For interior

For fashion

People also use #311237 with

Russian Violet Deep Purple Sacramento Green Gainsboro Eggplant

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 16.5:1. Use

Subtle surface Use #DEC3E3 for cards and hover fills. Tint 80

Avoid beside #361130 — 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 #311237 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: #311237;
  --color-base-rgb: 49 18 55;
  --color-base-oklch: oklch(24.8% 0.077 320.9);
  --color-50: #FAF3FC;
  --color-100: #F2E0F6;
  --color-200: #E4C1EB;
  --color-300: #CE97D9;
  --color-400: #B56FC3;
  --color-500: #984EA7;
  --color-600: #764181;
  --color-700: #55335C;
  --color-800: #39243D;
  --color-900: #231826;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  deep-purple: {
    50: '#FAF3FC',
    100: '#F2E0F6',
    200: '#E4C1EB',
    300: '#CE97D9',
    400: '#B56FC3',
    500: '#984EA7',
    600: '#764181',
    700: '#55335C',
    800: '#39243D',
    900: '#231826',
  },
}

$base: #311237;
$base-ink: #FFFFFF;
$base-50: #FAF3FC;
$base-100: #F2E0F6;
$base-200: #E4C1EB;
$base-300: #CE97D9;
$base-400: #B56FC3;
$base-500: #984EA7;
$base-600: #764181;
$base-700: #55335C;
$base-800: #39243D;
$base-900: #231826;
$base-hover: #260E2B;
$base-subtle: #CEA4D7;

{
    "color": {
        "base": {
            "value": "#311237",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FAF3FC",
                "type": "color"
            },
            "100": {
                "value": "#F2E0F6",
                "type": "color"
            },
            "200": {
                "value": "#E4C1EB",
                "type": "color"
            },
            "300": {
                "value": "#CE97D9",
                "type": "color"
            },
            "400": {
                "value": "#B56FC3",
                "type": "color"
            },
            "500": {
                "value": "#984EA7",
                "type": "color"
            },
            "600": {
                "value": "#764181",
                "type": "color"
            },
            "700": {
                "value": "#55335C",
                "type": "color"
            },
            "800": {
                "value": "#39243D",
                "type": "color"
            },
            "900": {
                "value": "#231826",
                "type": "color"
            }
        }
    }
}