What color is #121F1D?

#121F1D is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(18, 31, 29), and in HSL hsl(171, 27%, 10%).

Is #121F1D accessible as text?

On white, #121F1D has a contrast ratio of 16.94:1 (passes WCAG AA for body text); on black it is 1.24:1 (fails). For text placed on #121F1D, use white for the best readability.

What is the closest Tailwind color to #121F1D?

The nearest Tailwind CSS token is stone-900 (#1C1917).

What colors go well with #121F1D?

As a neutral, #121F1D 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 #121F1D the same as CSS midnightblue?

No — #121F1D 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.

#121F1D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #121F1D

Not just a swatch — here's how #121F1D works with other colors. Named schemes with #121F1D in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #121F1D Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #303D3A

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 #121F1D 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.

Japanese Sand Base · 5 colors

Base #121F1D Surface #EDEADC Highlight #F5F1E7 Secondary #B5B19F Ink #2A2723

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.

Luxury Packaging Feature · 5 colors

Feature #121F1D 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 #121F1D Secondary #3B403F 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 #121F1D 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 46/100

Neutral

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 72/100

High

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

Naturalness 9/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 21/100

Low

Clean and current — no dusty, aged cast.

Luxury 72/100

High

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

Brand distinctiveness 7/100

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 65/100

High

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

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #121F1D

For UI

For branding

For interior

For fashion

People also use #121F1D with

Bottle Green Graphite 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 16.9:1. Use

Subtle surface Use #C8DAD7 for cards and hover fills. Tint 80

Avoid beside #131E20 — 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 #121F1D 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: #121F1D;
  --color-base-rgb: 18 31 29;
  --color-base-oklch: oklch(22.6% 0.019 184.0);
  --color-50: #F5FAF9;
  --color-100: #E5F0EF;
  --color-200: #CBE1DE;
  --color-300: #A6C9C4;
  --color-400: #83AFA9;
  --color-500: #63928B;
  --color-600: #50726D;
  --color-700: #3D524F;
  --color-800: #2A3735;
  --color-900: #1B2221;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F5FAF9',
    100: '#E5F0EF',
    200: '#CBE1DE',
    300: '#A6C9C4',
    400: '#83AFA9',
    500: '#63928B',
    600: '#50726D',
    700: '#3D524F',
    800: '#2A3735',
    900: '#1B2221',
  },
}

$base: #121F1D;
$base-ink: #FFFFFF;
$base-50: #F5FAF9;
$base-100: #E5F0EF;
$base-200: #CBE1DE;
$base-300: #A6C9C4;
$base-400: #83AFA9;
$base-500: #63928B;
$base-600: #50726D;
$base-700: #3D524F;
$base-800: #2A3735;
$base-900: #1B2221;
$base-hover: #0F1A18;
$base-subtle: #ACC8C4;

{
    "color": {
        "base": {
            "value": "#121F1D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5FAF9",
                "type": "color"
            },
            "100": {
                "value": "#E5F0EF",
                "type": "color"
            },
            "200": {
                "value": "#CBE1DE",
                "type": "color"
            },
            "300": {
                "value": "#A6C9C4",
                "type": "color"
            },
            "400": {
                "value": "#83AFA9",
                "type": "color"
            },
            "500": {
                "value": "#63928B",
                "type": "color"
            },
            "600": {
                "value": "#50726D",
                "type": "color"
            },
            "700": {
                "value": "#3D524F",
                "type": "color"
            },
            "800": {
                "value": "#2A3735",
                "type": "color"
            },
            "900": {
                "value": "#1B2221",
                "type": "color"
            }
        }
    }
}

Palettes built on #121F1D

Color Lab

Pairs with #121F1D

UI roles & guardrails

In real applications

Scales

Every model

Export