#866FCB is a mid-toned, cool purple. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #866FCB works with other colors. Named schemes with #866FCB in its natural role, and a note on why the supporting colors balance it.
Medium Purple sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Medium Purple opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Medium Purple plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Medium Purple anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
Medium Purple 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 Medium Purple carrying the quiet middle.
How #866FCB 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 #866FCB at work across the surfaces designers actually ship.
:root {
--color-base: #866FCB;
--color-base-rgb: 134 111 203;
--color-base-oklch: oklch(60.4% 0.137 293.4);
--color-50: #F5F3FB;
--color-100: #E6E0F5;
--color-200: #CDC3E9;
--color-300: #A899D6;
--color-400: #8672C0;
--color-500: #6651A4;
--color-600: #52447E;
--color-700: #3E345A;
--color-800: #2B253C;
--color-900: #1B1825;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
medium-purple: {
50: '#F5F3FB',
100: '#E6E0F5',
200: '#CDC3E9',
300: '#A899D6',
400: '#8672C0',
500: '#6651A4',
600: '#52447E',
700: '#3E345A',
800: '#2B253C',
900: '#1B1825',
},
}
$base: #866FCB; $base-ink: #141310; $base-50: #F5F3FB; $base-100: #E6E0F5; $base-200: #CDC3E9; $base-300: #A899D6; $base-400: #8672C0; $base-500: #6651A4; $base-600: #52447E; $base-700: #3E345A; $base-800: #2B253C; $base-900: #1B1825; $base-hover: #6143BA; $base-subtle: #DDD8EC;
{
"color": {
"base": {
"value": "#866FCB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F3FB",
"type": "color"
},
"100": {
"value": "#E6E0F5",
"type": "color"
},
"200": {
"value": "#CDC3E9",
"type": "color"
},
"300": {
"value": "#A899D6",
"type": "color"
},
"400": {
"value": "#8672C0",
"type": "color"
},
"500": {
"value": "#6651A4",
"type": "color"
},
"600": {
"value": "#52447E",
"type": "color"
},
"700": {
"value": "#3E345A",
"type": "color"
},
"800": {
"value": "#2B253C",
"type": "color"
},
"900": {
"value": "#1B1825",
"type": "color"
}
}
}
}