What color is #05030B?

#05030B is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(5, 3, 11), and in HSL hsl(255, 57%, 3%).

Is #05030B accessible as text?

On white, #05030B has a contrast ratio of 20.50:1 (passes WCAG AA for body text); on black it is 1.02:1 (fails). For text placed on #05030B, use white for the best readability.

What is the closest Tailwind color to #05030B?

The nearest Tailwind CSS token is gray-950 (#030712).

What colors go well with #05030B?

As a neutral, #05030B 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 #05030B the same as CSS black?

No — #05030B is not the CSS named color black, but black (#000000) is the closest CSS named color.

#05030B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #05030B

Not just a swatch — here's how #05030B works with other colors. Named schemes with #05030B in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #05030B Secondary #7E4632 Surface #EDD8C2 Accent #355248 Anchor #582237

Jet Black 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 #05030B Surface #F2E8DD Highlight #F8F0E7 Secondary #BDADA1 Ink #2C2724

Jet Black 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 #05030B Anchor #141210 Accent #DA9856 Secondary #2A2732 Surface #F3ECE3

Jet Black 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 #F8F4EF Accent #05030B Secondary #222125 Support #9C9088 Ink #18140F

Jet Black 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 Jet Black carrying the quiet middle.

Berry & Cream Lead · 5 colors

Lead #05030B Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C8 Secondary #332B2F

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

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Color Lab

How #05030B 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 47/100

Neutral

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

Softness 13/100

Very low

Firm and assertive — carries weight and contrast.

Depth 84/100

Very 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 16/100

Very low

Clean and current — no dusty, aged cast.

Luxury 81/100

Very high

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

Brand distinctiveness 9/100

Very low

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

UI accent fit 3/100

Very low

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

Surface fit 71/100

High

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

Print safety 97/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #05030B

For UI

For branding

For interior

For fashion

People also use #05030B with

Graphite Jet Black Gainsboro Russian Violet

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 20.5:1. Use

Subtle surface Use #C3B9E2 for cards and hover fills. Tint 80

Avoid beside #08030C — 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 #05030B 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: #05030B;
  --color-base-rgb: 5 3 11;
  --color-base-oklch: oklch(10.9% 0.024 297.4);
  --color-50: #F5F3FC;
  --color-100: #E4DEF7;
  --color-200: #CBBFED;
  --color-300: #A593DC;
  --color-400: #816AC8;
  --color-500: #6148AD;
  --color-600: #4F3D84;
  --color-700: #3C305E;
  --color-800: #2A233E;
  --color-900: #1B1726;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F5F3FC',
    100: '#E4DEF7',
    200: '#CBBFED',
    300: '#A593DC',
    400: '#816AC8',
    500: '#6148AD',
    600: '#4F3D84',
    700: '#3C305E',
    800: '#2A233E',
    900: '#1B1726',
  },
}

$base: #05030B;
$base-ink: #FFFFFF;
$base-50: #F5F3FC;
$base-100: #E4DEF7;
$base-200: #CBBFED;
$base-300: #A593DC;
$base-400: #816AC8;
$base-500: #6148AD;
$base-600: #4F3D84;
$base-700: #3C305E;
$base-800: #2A233E;
$base-900: #1B1726;
$base-hover: #04030A;
$base-subtle: #A595D5;

{
    "color": {
        "base": {
            "value": "#05030B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F3FC",
                "type": "color"
            },
            "100": {
                "value": "#E4DEF7",
                "type": "color"
            },
            "200": {
                "value": "#CBBFED",
                "type": "color"
            },
            "300": {
                "value": "#A593DC",
                "type": "color"
            },
            "400": {
                "value": "#816AC8",
                "type": "color"
            },
            "500": {
                "value": "#6148AD",
                "type": "color"
            },
            "600": {
                "value": "#4F3D84",
                "type": "color"
            },
            "700": {
                "value": "#3C305E",
                "type": "color"
            },
            "800": {
                "value": "#2A233E",
                "type": "color"
            },
            "900": {
                "value": "#1B1726",
                "type": "color"
            }
        }
    }
}

Palettes built on #05030B

Color Lab

Pairs with #05030B

UI roles & guardrails

In real applications

Scales

Every model

Export