What color is #03211B?

#03211B is a very dark, vivid teal. In RGB it is rgb(3, 33, 27), and in HSL hsl(168, 83%, 7%).

Is #03211B accessible as text?

On white, #03211B has a contrast ratio of 16.97:1 (passes WCAG AA for body text); on black it is 1.24:1 (fails). For text placed on #03211B, use white for the best readability.

What is the closest Tailwind color to #03211B?

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

What colors go well with #03211B?

#03211B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #210309. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #03211B below.

Is #03211B good for buttons?

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

Is #03211B the same as CSS midnightblue?

No — #03211B 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.

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

Palettes built on #03211B

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

Coastal Morning Lead · 5 colors

Lead #03211B Accent #A7C4BC Surface #E0D9BE 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 #03211B Secondary #AEB4B7 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 #03211B Secondary #734F19 Surface #E4DCC0 Accent #3B5141 Anchor #5B231E

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 #03211B Anchor #141210 Accent #BBA84C Secondary #1E2C29 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 #03211B Secondary #37403E Support #979286 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 #03211B 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 43/100

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 21/100

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 #03211B

For UI

For branding

For interior

For fashion

People also use #03211B 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 #B3ECE1 for cards and hover fills. Tint 80

Avoid beside #031D21 — 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 #03211B 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: #03211B;
  --color-base-rgb: 3 33 27;
  --color-base-oklch: oklch(22.3% 0.038 177.1);
  --color-50: #F0FEFC;
  --color-100: #D9FDF5;
  --color-200: #B4F8EA;
  --color-300: #82EDD8;
  --color-400: #54DEC2;
  --color-500: #31C3A6;
  --color-600: #2D9580;
  --color-700: #26695C;
  --color-800: #1C443C;
  --color-900: #132A25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F0FEFC',
    100: '#D9FDF5',
    200: '#B4F8EA',
    300: '#82EDD8',
    400: '#54DEC2',
    500: '#31C3A6',
    600: '#2D9580',
    700: '#26695C',
    800: '#1C443C',
    900: '#132A25',
  },
}

$base: #03211B;
$base-ink: #FFFFFF;
$base-50: #F0FEFC;
$base-100: #D9FDF5;
$base-200: #B4F8EA;
$base-300: #82EDD8;
$base-400: #54DEC2;
$base-500: #31C3A6;
$base-600: #2D9580;
$base-700: #26695C;
$base-800: #1C443C;
$base-900: #132A25;
$base-hover: #021A15;
$base-subtle: #8BE5D3;

{
    "color": {
        "base": {
            "value": "#03211B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFC",
                "type": "color"
            },
            "100": {
                "value": "#D9FDF5",
                "type": "color"
            },
            "200": {
                "value": "#B4F8EA",
                "type": "color"
            },
            "300": {
                "value": "#82EDD8",
                "type": "color"
            },
            "400": {
                "value": "#54DEC2",
                "type": "color"
            },
            "500": {
                "value": "#31C3A6",
                "type": "color"
            },
            "600": {
                "value": "#2D9580",
                "type": "color"
            },
            "700": {
                "value": "#26695C",
                "type": "color"
            },
            "800": {
                "value": "#1C443C",
                "type": "color"
            },
            "900": {
                "value": "#132A25",
                "type": "color"
            }
        }
    }
}