#030409 is a near-black neutral with only a whisper of temperate cast. On the Color Lab it reads clean and engineered, quietly premium. It holds up as a large surface and is too dark to lead as a primary accent.
Not just a swatch — here's how #030409 works with other colors. Named schemes with #030409 in its natural role, and a note on why the supporting colors balance it.
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.
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.
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.
Jet Black opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
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.
How #030409 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.
Not a swatch to memorise — a color to build with. Here is #030409 at work across the surfaces designers actually ship.
:root {
--color-base: #030409;
--color-base-rgb: 3 4 9;
--color-base-oklch: oklch(10.9% 0.016 271.6);
--color-50: #F3F5FC;
--color-100: #E0E3F5;
--color-200: #C2C9EB;
--color-300: #97A2D8;
--color-400: #707DC2;
--color-500: #4E5DA6;
--color-600: #424C80;
--color-700: #333A5C;
--color-800: #24283C;
--color-900: #181A25;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
jet-black: {
50: '#F3F5FC',
100: '#E0E3F5',
200: '#C2C9EB',
300: '#97A2D8',
400: '#707DC2',
500: '#4E5DA6',
600: '#424C80',
700: '#333A5C',
800: '#24283C',
900: '#181A25',
},
}
$base: #030409; $base-ink: #FFFFFF; $base-50: #F3F5FC; $base-100: #E0E3F5; $base-200: #C2C9EB; $base-300: #97A2D8; $base-400: #707DC2; $base-500: #4E5DA6; $base-600: #424C80; $base-700: #333A5C; $base-800: #24283C; $base-900: #181A25; $base-hover: #020306; $base-subtle: #98A1D1;
{
"color": {
"base": {
"value": "#030409",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F5FC",
"type": "color"
},
"100": {
"value": "#E0E3F5",
"type": "color"
},
"200": {
"value": "#C2C9EB",
"type": "color"
},
"300": {
"value": "#97A2D8",
"type": "color"
},
"400": {
"value": "#707DC2",
"type": "color"
},
"500": {
"value": "#4E5DA6",
"type": "color"
},
"600": {
"value": "#424C80",
"type": "color"
},
"700": {
"value": "#333A5C",
"type": "color"
},
"800": {
"value": "#24283C",
"type": "color"
},
"900": {
"value": "#181A25",
"type": "color"
}
}
}
}