#300585 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 #300585 works with other colors. Named schemes with #300585 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 #300585 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 #300585 at work across the surfaces designers actually ship.
:root {
--color-base: #300585;
--color-base-rgb: 48 5 133;
--color-base-oklch: oklch(31.3% 0.179 284.2);
--color-50: #F5F0FE;
--color-100: #E4D8FD;
--color-200: #CAB1FC;
--color-300: #A47CF4;
--color-400: #7F4CE6;
--color-500: #5F29CC;
--color-600: #4E279B;
--color-700: #3B226D;
--color-800: #291A47;
--color-900: #1A122B;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
midnight-blue: {
50: '#F5F0FE',
100: '#E4D8FD',
200: '#CAB1FC',
300: '#A47CF4',
400: '#7F4CE6',
500: '#5F29CC',
600: '#4E279B',
700: '#3B226D',
800: '#291A47',
900: '#1A122B',
},
}
$base: #300585; $base-ink: #FFFFFF; $base-50: #F5F0FE; $base-100: #E4D8FD; $base-200: #CAB1FC; $base-300: #A47CF4; $base-400: #7F4CE6; $base-500: #5F29CC; $base-600: #4E279B; $base-700: #3B226D; $base-800: #291A47; $base-900: #1A122B; $base-hover: #26046A; $base-subtle: #BAA0EF;
{
"color": {
"base": {
"value": "#300585",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F0FE",
"type": "color"
},
"100": {
"value": "#E4D8FD",
"type": "color"
},
"200": {
"value": "#CAB1FC",
"type": "color"
},
"300": {
"value": "#A47CF4",
"type": "color"
},
"400": {
"value": "#7F4CE6",
"type": "color"
},
"500": {
"value": "#5F29CC",
"type": "color"
},
"600": {
"value": "#4E279B",
"type": "color"
},
"700": {
"value": "#3B226D",
"type": "color"
},
"800": {
"value": "#291A47",
"type": "color"
},
"900": {
"value": "#1A122B",
"type": "color"
}
}
}
}