What color is #030307?

#030307 is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(3, 3, 7), and in HSL hsl(240, 40%, 2%).

Is #030307 accessible as text?

On white, #030307 has a contrast ratio of 20.59:1 (passes WCAG AA for body text); on black it is 1.02:1 (fails). For text placed on #030307, use white for the best readability.

What is the closest Tailwind color to #030307?

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

What colors go well with #030307?

As a neutral, #030307 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 #030307 the same as CSS black?

No — #030307 is not the CSS named color black, but black (#000000) is the closest CSS named color.

#030307 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #030307

Not just a swatch — here's how #030307 works with other colors. Named schemes with #030307 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #030307 Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #1A1A21

Jet Black is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Jet Black.

Vintage Leather Lead · 5 colors

Lead #030307 Secondary #7E4533 Surface #EDD7C2 Accent #365247 Anchor #582238

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 #030307 Surface #F2E8DD Highlight #F8F0E7 Secondary #BEADA2 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 #030307 Anchor #141210 Accent #DB9758 Secondary #272833 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 #030307 Secondary #1F1F22 Support #9D9088 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.

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Color Lab

How #030307 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 12/100

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 13/100

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 6/100

Very low

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

UI accent fit 2/100

Very low

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

Surface fit 74/100

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 #030307

For UI

For branding

For interior

For fashion

People also use #030307 with

Graphite Jet Black Gainsboro Prussian Blue

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 20.6:1. Use

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

Avoid beside #040307 — 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 #030307 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: #030307;
  --color-base-rgb: 3 3 7;
  --color-base-oklch: oklch(10.1% 0.015 283.5);
  --color-50: #F4F4FB;
  --color-100: #E2E2F3;
  --color-200: #C6C6E6;
  --color-300: #9E9ED1;
  --color-400: #7878BA;
  --color-500: #57579E;
  --color-600: #48487A;
  --color-700: #373758;
  --color-800: #27273A;
  --color-900: #191924;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F4F4FB',
    100: '#E2E2F3',
    200: '#C6C6E6',
    300: '#9E9ED1',
    400: '#7878BA',
    500: '#57579E',
    600: '#48487A',
    700: '#373758',
    800: '#27273A',
    900: '#191924',
  },
}

$base: #030307;
$base-ink: #FFFFFF;
$base-50: #F4F4FB;
$base-100: #E2E2F3;
$base-200: #C6C6E6;
$base-300: #9E9ED1;
$base-400: #7878BA;
$base-500: #57579E;
$base-600: #48487A;
$base-700: #373758;
$base-800: #27273A;
$base-900: #191924;
$base-hover: #020206;
$base-subtle: #9D9DCB;

{
    "color": {
        "base": {
            "value": "#030307",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E2E2F3",
                "type": "color"
            },
            "200": {
                "value": "#C6C6E6",
                "type": "color"
            },
            "300": {
                "value": "#9E9ED1",
                "type": "color"
            },
            "400": {
                "value": "#7878BA",
                "type": "color"
            },
            "500": {
                "value": "#57579E",
                "type": "color"
            },
            "600": {
                "value": "#48487A",
                "type": "color"
            },
            "700": {
                "value": "#373758",
                "type": "color"
            },
            "800": {
                "value": "#27273A",
                "type": "color"
            },
            "900": {
                "value": "#191924",
                "type": "color"
            }
        }
    }
}

Palettes built on #030307

Color Lab

Pairs with #030307

UI roles & guardrails

In real applications

Scales

Every model

Export