What color is #21171F?

#21171F is a very dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(33, 23, 31), and in HSL hsl(312, 18%, 11%).

Is #21171F accessible as text?

On white, #21171F has a contrast ratio of 17.40:1 (passes WCAG AA for body text); on black it is 1.21:1 (fails). For text placed on #21171F, use white for the best readability.

What is the closest Tailwind color to #21171F?

The nearest Tailwind CSS token is zinc-900 (#18181B).

What colors go well with #21171F?

As a neutral, #21171F 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 #21171F the same as CSS midnightblue?

No — #21171F 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.

#21171F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #21171F

Not just a swatch — here's how #21171F works with other colors. Named schemes with #21171F in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #21171F Surface #14161A Highlight #F4F6F8 Secondary #5D6573 Accent #3F343C

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 #21171F Secondary #7D472D Surface #ECD8C1 Accent #464F38 Anchor #592233

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.

Japanese Sand Base · 5 colors

Base #21171F Surface #F1E8DC Highlight #F7F0E7 Secondary #BCADA1 Ink #2B2723

Graphite 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.

Berry & Cream Lead · 5 colors

Lead #21171F Surface #F4E6D7 Anchor #5D203D Accent #E6C2C5 Secondary #332B2E

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #21171F Secondary #403C3F Support #9C9087 Ink #18140F

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 #21171F 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 51/100

Neutral

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 73/100

High

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

Brand distinctiveness 8/100

Very low

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

UI accent fit 11/100

Very low

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

Surface fit 64/100

High

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

Print safety 98/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #21171F

For UI

For branding

For interior

For fashion

People also use #21171F with

Gunmetal Gray Graphite Gainsboro Eggplant

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 17.4:1. Use

Subtle surface Use #D7CCD5 for cards and hover fills. Tint 80

Avoid beside #21171C — 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 #21171F 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: #21171F;
  --color-base-rgb: 33 23 31;
  --color-base-oklch: oklch(22.1% 0.022 333.4);
  --color-50: #F9F6F8;
  --color-100: #EEE7ED;
  --color-200: #DECFDB;
  --color-300: #C3ACBF;
  --color-400: #A88AA2;
  --color-500: #8A6B84;
  --color-600: #6C5668;
  --color-700: #4F404C;
  --color-800: #352C33;
  --color-900: #211C20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F9F6F8',
    100: '#EEE7ED',
    200: '#DECFDB',
    300: '#C3ACBF',
    400: '#A88AA2',
    500: '#8A6B84',
    600: '#6C5668',
    700: '#4F404C',
    800: '#352C33',
    900: '#211C20',
  },
}

$base: #21171F;
$base-ink: #FFFFFF;
$base-50: #F9F6F8;
$base-100: #EEE7ED;
$base-200: #DECFDB;
$base-300: #C3ACBF;
$base-400: #A88AA2;
$base-500: #8A6B84;
$base-600: #6C5668;
$base-700: #4F404C;
$base-800: #352C33;
$base-900: #211C20;
$base-hover: #1A1219;
$base-subtle: #C4B2C1;

{
    "color": {
        "base": {
            "value": "#21171F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F6F8",
                "type": "color"
            },
            "100": {
                "value": "#EEE7ED",
                "type": "color"
            },
            "200": {
                "value": "#DECFDB",
                "type": "color"
            },
            "300": {
                "value": "#C3ACBF",
                "type": "color"
            },
            "400": {
                "value": "#A88AA2",
                "type": "color"
            },
            "500": {
                "value": "#8A6B84",
                "type": "color"
            },
            "600": {
                "value": "#6C5668",
                "type": "color"
            },
            "700": {
                "value": "#4F404C",
                "type": "color"
            },
            "800": {
                "value": "#352C33",
                "type": "color"
            },
            "900": {
                "value": "#211C20",
                "type": "color"
            }
        }
    }
}

Palettes built on #21171F

Color Lab

Pairs with #21171F

UI roles & guardrails

In real applications

Scales

Every model

Export