#300279 is a deep, cool purple. On the Color Lab it reads clean and engineered, quietly premium. It sits well as a supporting tone.
Not just a swatch — here's how #300279 works with other colors. Named schemes with #300279 in its natural role, and a note on why the supporting colors balance it.
Midnight Blue 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.
Midnight Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Midnight Blue.
Midnight Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Midnight Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Midnight Blue 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 Midnight Blue carrying the quiet middle.
How #300279 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 #300279 at work across the surfaces designers actually ship.
:root {
--color-base: #300279;
--color-base-rgb: 48 2 121;
--color-base-oklch: oklch(29.6% 0.168 287.7);
--color-50: #F6F0FE;
--color-100: #E6D8FD;
--color-200: #CDB1FC;
--color-300: #A979F6;
--color-400: #8649E9;
--color-500: #6625D0;
--color-600: #53259D;
--color-700: #3E206F;
--color-800: #2B1948;
--color-900: #1C112C;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
midnight-blue: {
50: '#F6F0FE',
100: '#E6D8FD',
200: '#CDB1FC',
300: '#A979F6',
400: '#8649E9',
500: '#6625D0',
600: '#53259D',
700: '#3E206F',
800: '#2B1948',
900: '#1C112C',
},
}
$base: #300279; $base-ink: #FFFFFF; $base-50: #F6F0FE; $base-100: #E6D8FD; $base-200: #CDB1FC; $base-300: #A979F6; $base-400: #8649E9; $base-500: #6625D0; $base-600: #53259D; $base-700: #3E206F; $base-800: #2B1948; $base-900: #1C112C; $base-hover: #260160; $base-subtle: #BB9AF0;
{
"color": {
"base": {
"value": "#300279",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F6F0FE",
"type": "color"
},
"100": {
"value": "#E6D8FD",
"type": "color"
},
"200": {
"value": "#CDB1FC",
"type": "color"
},
"300": {
"value": "#A979F6",
"type": "color"
},
"400": {
"value": "#8649E9",
"type": "color"
},
"500": {
"value": "#6625D0",
"type": "color"
},
"600": {
"value": "#53259D",
"type": "color"
},
"700": {
"value": "#3E206F",
"type": "color"
},
"800": {
"value": "#2B1948",
"type": "color"
},
"900": {
"value": "#1C112C",
"type": "color"
}
}
}
}