What color is #0B1B23?

#0B1B23 is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(11, 27, 35), and in HSL hsl(200, 52%, 9%).

Is #0B1B23 accessible as text?

On white, #0B1B23 has a contrast ratio of 17.57:1 (passes WCAG AA for body text); on black it is 1.20:1 (fails). For text placed on #0B1B23, use white for the best readability.

What is the closest Tailwind color to #0B1B23?

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

What colors go well with #0B1B23?

As a neutral, #0B1B23 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 #0B1B23 the same as CSS midnightblue?

No — #0B1B23 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.

#0B1B23 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0B1B23

Not just a swatch — here's how #0B1B23 works with other colors. Named schemes with #0B1B23 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0B1B23 Accent #A6C4BF 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.

Nordic Calm Accent · 5 colors

Accent #0B1B23 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.

Tech Product Signal · 5 colors

Signal #0B1B23 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #293840

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 #0B1B23 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 #0B1B23 Secondary #363C3F 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 #0B1B23 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 42/100

Neutral

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

Softness 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 74/100

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 20/100

Very low

Clean and current — no dusty, aged cast.

Luxury 74/100

High

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

Brand distinctiveness 10/100

Very low

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

UI accent fit 10/100

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 93/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0B1B23

For UI

For branding

For interior

For fashion

People also use #0B1B23 with

Bottle Green Jet Black Graphite 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 17.6:1. Use

Subtle surface Use #BFD6E2 for cards and hover fills. Tint 80

Avoid beside #0B1323 — 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 #0B1B23 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

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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: #0B1B23;
  --color-base-rgb: 11 27 35;
  --color-base-oklch: oklch(21.2% 0.027 231.7);
  --color-50: #F3F9FC;
  --color-100: #DFEEF6;
  --color-200: #C1DDEB;
  --color-300: #96C3D9;
  --color-400: #6EA7C4;
  --color-500: #4D8AA8;
  --color-600: #416C81;
  --color-700: #324E5C;
  --color-800: #24353D;
  --color-900: #182126;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F3F9FC',
    100: '#DFEEF6',
    200: '#C1DDEB',
    300: '#96C3D9',
    400: '#6EA7C4',
    500: '#4D8AA8',
    600: '#416C81',
    700: '#324E5C',
    800: '#24353D',
    900: '#182126',
  },
}

$base: #0B1B23;
$base-ink: #FFFFFF;
$base-50: #F3F9FC;
$base-100: #DFEEF6;
$base-200: #C1DDEB;
$base-300: #96C3D9;
$base-400: #6EA7C4;
$base-500: #4D8AA8;
$base-600: #416C81;
$base-700: #324E5C;
$base-800: #24353D;
$base-900: #182126;
$base-hover: #09161C;
$base-subtle: #9EC3D5;

{
    "color": {
        "base": {
            "value": "#0B1B23",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FC",
                "type": "color"
            },
            "100": {
                "value": "#DFEEF6",
                "type": "color"
            },
            "200": {
                "value": "#C1DDEB",
                "type": "color"
            },
            "300": {
                "value": "#96C3D9",
                "type": "color"
            },
            "400": {
                "value": "#6EA7C4",
                "type": "color"
            },
            "500": {
                "value": "#4D8AA8",
                "type": "color"
            },
            "600": {
                "value": "#416C81",
                "type": "color"
            },
            "700": {
                "value": "#324E5C",
                "type": "color"
            },
            "800": {
                "value": "#24353D",
                "type": "color"
            },
            "900": {
                "value": "#182126",
                "type": "color"
            }
        }
    }
}

Palettes built on #0B1B23

Color Lab

Pairs with #0B1B23

UI roles & guardrails

In real applications

Scales

Every model

Export