What color is #02171D?

#02171D is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(2, 23, 29), and in HSL hsl(193, 87%, 6%).

Is #02171D accessible as text?

On white, #02171D has a contrast ratio of 18.37:1 (passes WCAG AA for body text); on black it is 1.14:1 (fails). For text placed on #02171D, use white for the best readability.

What is the closest Tailwind color to #02171D?

The nearest Tailwind CSS token is gray-900 (#101828).

What colors go well with #02171D?

As a neutral, #02171D 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 #02171D the same as CSS midnightblue?

No — #02171D 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.

#02171D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #02171D

Not just a swatch — here's how #02171D works with other colors. Named schemes with #02171D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #02171D Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

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 #02171D Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #02171D Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #20343A

Graphite is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Graphite.

Vintage Leather Lead · 5 colors

Lead #02171D Secondary #705116 Surface #E3DCC0 Accent #395244 Anchor #56233E

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #02171D Secondary #2F3739 Support #969386 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 #02171D 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 41/100

Neutral

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

Softness 21/100

Low

Firm and assertive — carries weight and contrast.

Depth 76/100

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 19/100

Very low

Clean and current — no dusty, aged cast.

Luxury 76/100

High

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

Brand distinctiveness 12/100

Very low

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

UI accent fit 8/100

Very low

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

Surface fit 63/100

High

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

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #02171D

For UI

For branding

For interior

For fashion

People also use #02171D 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 18.4:1. Use

Subtle surface Use #B1E0ED for cards and hover fills. Tint 80

Avoid beside #020E1D — 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 #02171D at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #02171D;
  --color-base-rgb: 2 23 29;
  --color-base-oklch: oklch(19.0% 0.031 218.3);
  --color-50: #F0FBFE;
  --color-100: #D8F5FD;
  --color-200: #B3EAFA;
  --color-300: #7FD7F0;
  --color-400: #51C2E1;
  --color-500: #2EA6C7;
  --color-600: #2B8097;
  --color-700: #245B6B;
  --color-800: #1C3C45;
  --color-900: #13252A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F0FBFE',
    100: '#D8F5FD',
    200: '#B3EAFA',
    300: '#7FD7F0',
    400: '#51C2E1',
    500: '#2EA6C7',
    600: '#2B8097',
    700: '#245B6B',
    800: '#1C3C45',
    900: '#13252A',
  },
}

$base: #02171D;
$base-ink: #FFFFFF;
$base-50: #F0FBFE;
$base-100: #D8F5FD;
$base-200: #B3EAFA;
$base-300: #7FD7F0;
$base-400: #51C2E1;
$base-500: #2EA6C7;
$base-600: #2B8097;
$base-700: #245B6B;
$base-800: #1C3C45;
$base-900: #13252A;
$base-hover: #021217;
$base-subtle: #88D2E7;

{
    "color": {
        "base": {
            "value": "#02171D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FBFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F5FD",
                "type": "color"
            },
            "200": {
                "value": "#B3EAFA",
                "type": "color"
            },
            "300": {
                "value": "#7FD7F0",
                "type": "color"
            },
            "400": {
                "value": "#51C2E1",
                "type": "color"
            },
            "500": {
                "value": "#2EA6C7",
                "type": "color"
            },
            "600": {
                "value": "#2B8097",
                "type": "color"
            },
            "700": {
                "value": "#245B6B",
                "type": "color"
            },
            "800": {
                "value": "#1C3C45",
                "type": "color"
            },
            "900": {
                "value": "#13252A",
                "type": "color"
            }
        }
    }
}

Palettes built on #02171D

Color Lab

Pairs with #02171D

UI roles & guardrails

In real applications

Scales

Every model

Export