#311A67 is a deep, cool purple. On the Color Lab it reads clean and engineered, quietly premium. It reproduces cleanly in print.
Not just a swatch — here's how #311A67 works with other colors. Named schemes with #311A67 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 sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
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 #311A67 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 #311A67 at work across the surfaces designers actually ship.
:root {
--color-base: #311A67;
--color-base-rgb: 49 26 103;
--color-base-oklch: oklch(30.1% 0.126 290.4);
--color-50: #F5F2FC;
--color-100: #E5DEF8;
--color-200: #CCBEEF;
--color-300: #A891DE;
--color-400: #8567CB;
--color-500: #6546AF;
--color-600: #523C86;
--color-700: #3E2F60;
--color-800: #2B223F;
--color-900: #1B1627;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
midnight-blue: {
50: '#F5F2FC',
100: '#E5DEF8',
200: '#CCBEEF',
300: '#A891DE',
400: '#8567CB',
500: '#6546AF',
600: '#523C86',
700: '#3E2F60',
800: '#2B223F',
900: '#1B1627',
},
}
$base: #311A67; $base-ink: #FFFFFF; $base-50: #F5F2FC; $base-100: #E5DEF8; $base-200: #CCBEEF; $base-300: #A891DE; $base-400: #8567CB; $base-500: #6546AF; $base-600: #523C86; $base-700: #3E2F60; $base-800: #2B223F; $base-900: #1B1627; $base-hover: #271452; $base-subtle: #BBABE0;
{
"color": {
"base": {
"value": "#311A67",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F2FC",
"type": "color"
},
"100": {
"value": "#E5DEF8",
"type": "color"
},
"200": {
"value": "#CCBEEF",
"type": "color"
},
"300": {
"value": "#A891DE",
"type": "color"
},
"400": {
"value": "#8567CB",
"type": "color"
},
"500": {
"value": "#6546AF",
"type": "color"
},
"600": {
"value": "#523C86",
"type": "color"
},
"700": {
"value": "#3E2F60",
"type": "color"
},
"800": {
"value": "#2B223F",
"type": "color"
},
"900": {
"value": "#1B1627",
"type": "color"
}
}
}
}