What color is #210331?

#210331 is a very dark, vivid violet. In RGB it is rgb(33, 3, 49), and in HSL hsl(279, 88%, 10%).

Is #210331 accessible as text?

On white, #210331 has a contrast ratio of 18.72:1 (passes WCAG AA for body text); on black it is 1.12:1 (fails). For text placed on #210331, use white for the best readability.

What is the closest Tailwind color to #210331?

The nearest Tailwind CSS token is mauve-900 (#1D161E).

What colors go well with #210331?

#210331 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #133003. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #210331 below.

Is #210331 good for buttons?

#210331 works well for buttons and highlights, but use white text on #210331 — black text only reaches 1.12:1, below the 4.5:1 needed for normal-size labels.

Is #210331 the same as CSS midnightblue?

No — #210331 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.

#210331 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #210331

Not just a swatch — here's how #210331 works with other colors. Named schemes with #210331 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #210331 Secondary #7E4630 Surface #EDD8C1 Accent #355249 Anchor #592236

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 #210331 Surface #F1E8DC Highlight #F8F0E7 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 #210331 Anchor #141210 Accent #D99954 Secondary #2C2630 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 #210331 Secondary #3C3242 Support #9C9088 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 #210331 Surface #F5E6D7 Anchor #5C213F Accent #E5C2C7 Secondary #332B2F

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

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Color Lab

How #210331 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 46/100

Neutral

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

Softness 19/100

Very low

Firm and assertive — carries weight and contrast.

Depth 80/100

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 82/100

Very high

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

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 13/100

Very 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 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #210331

For UI

For branding

For interior

For fashion

People also use #210331 with

Navy Deep Purple Sacramento 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 18.7:1. Use

Subtle surface Use #DAB4EE for cards and hover fills. Tint 80

Avoid beside #2F0330 — 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 #210331 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: #210331;
  --color-base-rgb: 33 3 49;
  --color-base-oklch: oklch(19.4% 0.088 310.7);
  --color-50: #F9F0FE;
  --color-100: #F0D8FD;
  --color-200: #E1B2FA;
  --color-300: #C97FF0;
  --color-400: #AF50E2;
  --color-500: #922DC8;
  --color-600: #712A98;
  --color-700: #52246B;
  --color-800: #371B46;
  --color-900: #22132B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  deep-purple: {
    50: '#F9F0FE',
    100: '#F0D8FD',
    200: '#E1B2FA',
    300: '#C97FF0',
    400: '#AF50E2',
    500: '#922DC8',
    600: '#712A98',
    700: '#52246B',
    800: '#371B46',
    900: '#22132B',
  },
}

$base: #210331;
$base-ink: #FFFFFF;
$base-50: #F9F0FE;
$base-100: #F0D8FD;
$base-200: #E1B2FA;
$base-300: #C97FF0;
$base-400: #AF50E2;
$base-500: #922DC8;
$base-600: #712A98;
$base-700: #52246B;
$base-800: #371B46;
$base-900: #22132B;
$base-hover: #1A0226;
$base-subtle: #C88CE8;

{
    "color": {
        "base": {
            "value": "#210331",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F0FE",
                "type": "color"
            },
            "100": {
                "value": "#F0D8FD",
                "type": "color"
            },
            "200": {
                "value": "#E1B2FA",
                "type": "color"
            },
            "300": {
                "value": "#C97FF0",
                "type": "color"
            },
            "400": {
                "value": "#AF50E2",
                "type": "color"
            },
            "500": {
                "value": "#922DC8",
                "type": "color"
            },
            "600": {
                "value": "#712A98",
                "type": "color"
            },
            "700": {
                "value": "#52246B",
                "type": "color"
            },
            "800": {
                "value": "#371B46",
                "type": "color"
            },
            "900": {
                "value": "#22132B",
                "type": "color"
            }
        }
    }
}

Palettes built on #210331

Color Lab

Pairs with #210331

UI roles & guardrails

In real applications

Scales

Every model

Export