#150665 is a deep, cool violet. On the Color Lab it reads clean and engineered, quietly premium. It is too dark to lead as a primary accent and sits well as a supporting tone.
Not just a swatch — here's how #150665 works with other colors. Named schemes with #150665 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 #150665 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 #150665 at work across the surfaces designers actually ship.
:root {
--color-base: #150665;
--color-base-rgb: 21 6 101;
--color-base-oklch: oklch(24.8% 0.147 274.4);
--color-50: #F2F0FE;
--color-100: #DDD8FD;
--color-200: #BDB2FA;
--color-300: #8F7EF1;
--color-400: #654FE3;
--color-500: #442CC9;
--color-600: #3A2A98;
--color-700: #2E236B;
--color-800: #211B46;
--color-900: #16132B;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
midnight-blue: {
50: '#F2F0FE',
100: '#DDD8FD',
200: '#BDB2FA',
300: '#8F7EF1',
400: '#654FE3',
500: '#442CC9',
600: '#3A2A98',
700: '#2E236B',
800: '#211B46',
900: '#16132B',
},
}
$base: #150665; $base-ink: #FFFFFF; $base-50: #F2F0FE; $base-100: #DDD8FD; $base-200: #BDB2FA; $base-300: #8F7EF1; $base-400: #654FE3; $base-500: #442CC9; $base-600: #3A2A98; $base-700: #2E236B; $base-800: #211B46; $base-900: #16132B; $base-hover: #100551; $base-subtle: #A69AEB;
{
"color": {
"base": {
"value": "#150665",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F0FE",
"type": "color"
},
"100": {
"value": "#DDD8FD",
"type": "color"
},
"200": {
"value": "#BDB2FA",
"type": "color"
},
"300": {
"value": "#8F7EF1",
"type": "color"
},
"400": {
"value": "#654FE3",
"type": "color"
},
"500": {
"value": "#442CC9",
"type": "color"
},
"600": {
"value": "#3A2A98",
"type": "color"
},
"700": {
"value": "#2E236B",
"type": "color"
},
"800": {
"value": "#211B46",
"type": "color"
},
"900": {
"value": "#16132B",
"type": "color"
}
}
}
}