What color is #0A151B?

#0A151B is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(10, 21, 27), and in HSL hsl(201, 46%, 7%).

Is #0A151B accessible as text?

On white, #0A151B has a contrast ratio of 18.49:1 (passes WCAG AA for body text); on black it is 1.14:1 (fails). For text placed on #0A151B, use white for the best readability.

What is the closest Tailwind color to #0A151B?

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

What colors go well with #0A151B?

As a neutral, #0A151B 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 #0A151B the same as CSS midnightblue?

No — #0A151B 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.

#0A151B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0A151B

Not just a swatch — here's how #0A151B works with other colors. Named schemes with #0A151B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0A151B Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Graphite opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Tech Product Signal · 5 colors

Signal #0A151B Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #273238

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.

Nordic Calm Accent · 5 colors

Accent #0A151B Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 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 #0A151B Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

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 #0A151B Secondary #323638 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.

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Color Lab

How #0A151B 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 44/100

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 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 17/100

Very low

Clean and current — no dusty, aged cast.

Luxury 75/100

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 7/100

Very low

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

Surface fit 67/100

High

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

Print safety 95/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0A151B

For UI

For branding

For interior

For fashion

People also use #0A151B with

Bottle Green Jet Black Platinum Charcoal

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 18.5:1. Use

Subtle surface Use #C0D4DF for cards and hover fills. Tint 80

Avoid beside #0A0F1A — 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 #0A151B 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: #0A151B;
  --color-base-rgb: 10 21 27;
  --color-base-oklch: oklch(18.8% 0.020 233.2);
  --color-50: #F3F9FB;
  --color-100: #E1EEF5;
  --color-200: #C4DCE9;
  --color-300: #9AC1D5;
  --color-400: #73A4BF;
  --color-500: #5287A3;
  --color-600: #44697E;
  --color-700: #354D5A;
  --color-800: #25343C;
  --color-900: #182025;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F3F9FB',
    100: '#E1EEF5',
    200: '#C4DCE9',
    300: '#9AC1D5',
    400: '#73A4BF',
    500: '#5287A3',
    600: '#44697E',
    700: '#354D5A',
    800: '#25343C',
    900: '#182025',
  },
}

$base: #0A151B;
$base-ink: #FFFFFF;
$base-50: #F3F9FB;
$base-100: #E1EEF5;
$base-200: #C4DCE9;
$base-300: #9AC1D5;
$base-400: #73A4BF;
$base-500: #5287A3;
$base-600: #44697E;
$base-700: #354D5A;
$base-800: #25343C;
$base-900: #182025;
$base-hover: #081015;
$base-subtle: #9FBFD1;

{
    "color": {
        "base": {
            "value": "#0A151B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FB",
                "type": "color"
            },
            "100": {
                "value": "#E1EEF5",
                "type": "color"
            },
            "200": {
                "value": "#C4DCE9",
                "type": "color"
            },
            "300": {
                "value": "#9AC1D5",
                "type": "color"
            },
            "400": {
                "value": "#73A4BF",
                "type": "color"
            },
            "500": {
                "value": "#5287A3",
                "type": "color"
            },
            "600": {
                "value": "#44697E",
                "type": "color"
            },
            "700": {
                "value": "#354D5A",
                "type": "color"
            },
            "800": {
                "value": "#25343C",
                "type": "color"
            },
            "900": {
                "value": "#182025",
                "type": "color"
            }
        }
    }
}

Palettes built on #0A151B

Color Lab

Pairs with #0A151B

UI roles & guardrails

In real applications

Scales

Every model

Export