What color is #03211A?

#03211A is a very dark, vivid teal. In RGB it is rgb(3, 33, 26), and in HSL hsl(166, 83%, 7%).

Is #03211A accessible as text?

On white, #03211A has a contrast ratio of 16.99:1 (passes WCAG AA for body text); on black it is 1.24:1 (fails). For text placed on #03211A, use white for the best readability.

What is the closest Tailwind color to #03211A?

The nearest Tailwind CSS token is mist-900 (#161B1D).

What colors go well with #03211A?

#03211A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #21030A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #03211A below.

Is #03211A good for buttons?

#03211A works well for buttons and highlights, but use white text on #03211A — black text only reaches 1.24:1, below the 4.5:1 needed for normal-size labels.

Is #03211A the same as CSS midnightblue?

No — #03211A 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.

#03211A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #03211A

Not just a swatch — here's how #03211A works with other colors. Named schemes with #03211A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #03211A Accent #A7C4BC Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3549

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

Nordic Calm Accent · 5 colors

Accent #03211A Secondary #ADB4B7 Surface #F1F2F0 Support #7994A4 Anchor #2D3236

Graphite keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #03211A Secondary #734F19 Surface #E4DCC0 Accent #3B5141 Anchor #5B231F

Graphite plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Luxury Packaging Feature · 5 colors

Feature #03211A Anchor #141210 Accent #BCA84C Secondary #1F2C28 Surface #F1EDE3

Graphite 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 #F7F4EF Accent #03211A Secondary #37403D Support #989286 Ink #16140F

Graphite 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 Graphite carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #03211A 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 44/100

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 24/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 25/100

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 15/100

Very low

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

UI accent fit 13/100

Very low

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

Surface fit 59/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #03211A

For UI

For branding

For interior

For fashion

People also use #03211A with

British Racing Green Graphite Jet Black Platinum Dark Slate Gray

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 17.0:1. Use

Subtle surface Use #B3ECDF for cards and hover fills. Tint 80

Avoid beside #031E21 — 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 #03211A 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: #03211A;
  --color-base-rgb: 3 33 26;
  --color-base-oklch: oklch(22.3% 0.039 174.5);
  --color-50: #F0FEFB;
  --color-100: #D9FDF4;
  --color-200: #B4F8E8;
  --color-300: #82EDD4;
  --color-400: #54DEBE;
  --color-500: #31C3A1;
  --color-600: #2D957C;
  --color-700: #266959;
  --color-800: #1C443B;
  --color-900: #132A25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F0FEFB',
    100: '#D9FDF4',
    200: '#B4F8E8',
    300: '#82EDD4',
    400: '#54DEBE',
    500: '#31C3A1',
    600: '#2D957C',
    700: '#266959',
    800: '#1C443B',
    900: '#132A25',
  },
}

$base: #03211A;
$base-ink: #FFFFFF;
$base-50: #F0FEFB;
$base-100: #D9FDF4;
$base-200: #B4F8E8;
$base-300: #82EDD4;
$base-400: #54DEBE;
$base-500: #31C3A1;
$base-600: #2D957C;
$base-700: #266959;
$base-800: #1C443B;
$base-900: #132A25;
$base-hover: #021A15;
$base-subtle: #8BE5D0;

{
    "color": {
        "base": {
            "value": "#03211A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFB",
                "type": "color"
            },
            "100": {
                "value": "#D9FDF4",
                "type": "color"
            },
            "200": {
                "value": "#B4F8E8",
                "type": "color"
            },
            "300": {
                "value": "#82EDD4",
                "type": "color"
            },
            "400": {
                "value": "#54DEBE",
                "type": "color"
            },
            "500": {
                "value": "#31C3A1",
                "type": "color"
            },
            "600": {
                "value": "#2D957C",
                "type": "color"
            },
            "700": {
                "value": "#266959",
                "type": "color"
            },
            "800": {
                "value": "#1C443B",
                "type": "color"
            },
            "900": {
                "value": "#132A25",
                "type": "color"
            }
        }
    }
}