What color is #151B19?

#151B19 is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(21, 27, 25), and in HSL hsl(160, 13%, 9%).

Is #151B19 accessible as text?

On white, #151B19 has a contrast ratio of 17.46:1 (passes WCAG AA for body text); on black it is 1.20:1 (fails). For text placed on #151B19, use white for the best readability.

What is the closest Tailwind color to #151B19?

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

What colors go well with #151B19?

As a neutral, #151B19 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 #151B19 the same as CSS midnightblue?

No — #151B19 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.

#151B19 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #151B19

Not just a swatch — here's how #151B19 works with other colors. Named schemes with #151B19 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #151B19 Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #323836

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 #151B19 Secondary #734F19 Surface #E4DBC0 Accent #3B5141 Anchor #5B231F

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 #151B19 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 #151B19 Anchor #141210 Accent #BCA84C Secondary #1F2C28 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 #151B19 Secondary #3A3C3C Support #989286 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 #151B19 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 48/100

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 12/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 20/100

Very low

Clean and current — no dusty, aged cast.

Luxury 72/100

High

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

Brand distinctiveness 4/100

Very low

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

UI accent fit 9/100

Very low

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

Surface fit 68/100

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 #151B19

For UI

For branding

For interior

For fashion

People also use #151B19 with

Gunmetal Gray Graphite Platinum Outer Space

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 17.5:1. Use

Subtle surface Use #CCD5D2 for cards and hover fills. Tint 80

Avoid beside #141A1A — 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 #151B19 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: #151B19;
  --color-base-rgb: 21 27 25;
  --color-base-oklch: oklch(21.5% 0.010 173.2);
  --color-50: #F6F8F8;
  --color-100: #E8EDEC;
  --color-200: #D1DBD8;
  --color-300: #AFC0BA;
  --color-400: #8EA49D;
  --color-500: #6F867E;
  --color-600: #596964;
  --color-700: #424D49;
  --color-800: #2D3431;
  --color-900: #1D201F;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F6F8F8',
    100: '#E8EDEC',
    200: '#D1DBD8',
    300: '#AFC0BA',
    400: '#8EA49D',
    500: '#6F867E',
    600: '#596964',
    700: '#424D49',
    800: '#2D3431',
    900: '#1D201F',
  },
}

$base: #151B19;
$base-ink: #FFFFFF;
$base-50: #F6F8F8;
$base-100: #E8EDEC;
$base-200: #D1DBD8;
$base-300: #AFC0BA;
$base-400: #8EA49D;
$base-500: #6F867E;
$base-600: #596964;
$base-700: #424D49;
$base-800: #2D3431;
$base-900: #1D201F;
$base-hover: #101513;
$base-subtle: #B3C0BC;

{
    "color": {
        "base": {
            "value": "#151B19",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F8F8",
                "type": "color"
            },
            "100": {
                "value": "#E8EDEC",
                "type": "color"
            },
            "200": {
                "value": "#D1DBD8",
                "type": "color"
            },
            "300": {
                "value": "#AFC0BA",
                "type": "color"
            },
            "400": {
                "value": "#8EA49D",
                "type": "color"
            },
            "500": {
                "value": "#6F867E",
                "type": "color"
            },
            "600": {
                "value": "#596964",
                "type": "color"
            },
            "700": {
                "value": "#424D49",
                "type": "color"
            },
            "800": {
                "value": "#2D3431",
                "type": "color"
            },
            "900": {
                "value": "#1D201F",
                "type": "color"
            }
        }
    }
}

Palettes built on #151B19

Color Lab

Pairs with #151B19

UI roles & guardrails

In real applications

Scales

Every model

Export