What color is #021B18?

#021B18 is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(2, 27, 24), and in HSL hsl(173, 86%, 6%).

Is #021B18 accessible as text?

On white, #021B18 has a contrast ratio of 17.91:1 (passes WCAG AA for body text); on black it is 1.17:1 (fails). For text placed on #021B18, use white for the best readability.

What is the closest Tailwind color to #021B18?

The nearest Tailwind CSS token is neutral-900 (#171717).

What colors go well with #021B18?

As a neutral, #021B18 pairs cleanly with white, off-white and light grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a dark surface or high-contrast base and let the accent carry the color.

Is #021B18 the same as CSS midnightblue?

No — #021B18 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.

#021B18 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #021B18

Not just a swatch — here's how #021B18 works with other colors. Named schemes with #021B18 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #021B18 Accent #A7C4BC Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

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 #021B18 Secondary #AEB4B7 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

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 #021B18 Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #5B241E

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 #021B18 Anchor #141210 Accent #BAA94D Secondary #1E2C2A 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 #021B18 Secondary #323A39 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.

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Color Lab

How #021B18 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 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 75/100

High

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

Naturalness 13/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 22/100

Low

Clean and current — no dusty, aged cast.

Luxury 75/100

High

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

Brand distinctiveness 13/100

Very low

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

UI accent fit 10/100

Very low

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

Surface fit 62/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 93/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #021B18

For UI

For branding

For interior

For fashion

People also use #021B18 with

British Racing Green 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 17.9:1. Use

Subtle surface Use #B1EDE6 for cards and hover fills. Tint 80

Avoid beside #02171C — 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 #021B18 at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

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NIGHT
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Packaging

BLOOM

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250 ml

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Export

:root {
  --color-base: #021B18;
  --color-base-rgb: 2 27 24;
  --color-base-oklch: oklch(20.1% 0.033 184.4);
  --color-50: #F0FEFD;
  --color-100: #D8FDF9;
  --color-200: #B3F9F1;
  --color-300: #80EFE2;
  --color-400: #52E0D0;
  --color-500: #2FC6B4;
  --color-600: #2B968A;
  --color-700: #256A62;
  --color-800: #1C4540;
  --color-900: #132A28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F0FEFD',
    100: '#D8FDF9',
    200: '#B3F9F1',
    300: '#80EFE2',
    400: '#52E0D0',
    500: '#2FC6B4',
    600: '#2B968A',
    700: '#256A62',
    800: '#1C4540',
    900: '#132A28',
  },
}

$base: #021B18;
$base-ink: #FFFFFF;
$base-50: #F0FEFD;
$base-100: #D8FDF9;
$base-200: #B3F9F1;
$base-300: #80EFE2;
$base-400: #52E0D0;
$base-500: #2FC6B4;
$base-600: #2B968A;
$base-700: #256A62;
$base-800: #1C4540;
$base-900: #132A28;
$base-hover: #021714;
$base-subtle: #88E6DB;

{
    "color": {
        "base": {
            "value": "#021B18",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFD",
                "type": "color"
            },
            "100": {
                "value": "#D8FDF9",
                "type": "color"
            },
            "200": {
                "value": "#B3F9F1",
                "type": "color"
            },
            "300": {
                "value": "#80EFE2",
                "type": "color"
            },
            "400": {
                "value": "#52E0D0",
                "type": "color"
            },
            "500": {
                "value": "#2FC6B4",
                "type": "color"
            },
            "600": {
                "value": "#2B968A",
                "type": "color"
            },
            "700": {
                "value": "#256A62",
                "type": "color"
            },
            "800": {
                "value": "#1C4540",
                "type": "color"
            },
            "900": {
                "value": "#132A28",
                "type": "color"
            }
        }
    }
}

Palettes built on #021B18

Color Lab

Pairs with #021B18

UI roles & guardrails

In real applications

Scales

Every model

Export