#321B86 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 #321B86 works with other colors. Named schemes with #321B86 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 #321B86 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 #321B86 at work across the surfaces designers actually ship.
:root {
--color-base: #321B86;
--color-base-rgb: 50 27 134;
--color-base-oklch: oklch(33.5% 0.164 282.9);
--color-50: #F4F2FD;
--color-100: #E3DCF9;
--color-200: #C7BBF1;
--color-300: #9F8DE2;
--color-400: #7A62D0;
--color-500: #5940B5;
--color-600: #4A388A;
--color-700: #382D62;
--color-800: #272140;
--color-900: #1A1628;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
midnight-blue: {
50: '#F4F2FD',
100: '#E3DCF9',
200: '#C7BBF1',
300: '#9F8DE2',
400: '#7A62D0',
500: '#5940B5',
600: '#4A388A',
700: '#382D62',
800: '#272140',
900: '#1A1628',
},
}
$base: #321B86; $base-ink: #FFFFFF; $base-50: #F4F2FD; $base-100: #E3DCF9; $base-200: #C7BBF1; $base-300: #9F8DE2; $base-400: #7A62D0; $base-500: #5940B5; $base-600: #4A388A; $base-700: #382D62; $base-800: #272140; $base-900: #1A1628; $base-hover: #29166C; $base-subtle: #BCB1E5;
{
"color": {
"base": {
"value": "#321B86",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F2FD",
"type": "color"
},
"100": {
"value": "#E3DCF9",
"type": "color"
},
"200": {
"value": "#C7BBF1",
"type": "color"
},
"300": {
"value": "#9F8DE2",
"type": "color"
},
"400": {
"value": "#7A62D0",
"type": "color"
},
"500": {
"value": "#5940B5",
"type": "color"
},
"600": {
"value": "#4A388A",
"type": "color"
},
"700": {
"value": "#382D62",
"type": "color"
},
"800": {
"value": "#272140",
"type": "color"
},
"900": {
"value": "#1A1628",
"type": "color"
}
}
}
}