#685FC7 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 sits well as a supporting tone.
Not just a swatch — here's how #685FC7 works with other colors. Named schemes with #685FC7 in its natural role, and a note on why the supporting colors balance it.
Slate Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Slate 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.
Slate Blue 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.
Slate Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Slate 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 Slate Blue carrying the quiet middle.
How #685FC7 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 #685FC7 at work across the surfaces designers actually ship.
:root {
--color-base: #685FC7;
--color-base-rgb: 104 95 199;
--color-base-oklch: oklch(54.7% 0.156 283.9);
--color-50: #F4F3FB;
--color-100: #E2E0F5;
--color-200: #C6C3EA;
--color-300: #9E99D7;
--color-400: #7871C1;
--color-500: #5750A5;
--color-600: #48437F;
--color-700: #37345B;
--color-800: #27253C;
--color-900: #191825;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
slate-blue: {
50: '#F4F3FB',
100: '#E2E0F5',
200: '#C6C3EA',
300: '#9E99D7',
400: '#7871C1',
500: '#5750A5',
600: '#48437F',
700: '#37345B',
800: '#27253C',
900: '#191825',
},
}
$base: #685FC7; $base-ink: #FFFFFF; $base-50: #F4F3FB; $base-100: #E2E0F5; $base-200: #C6C3EA; $base-300: #9E99D7; $base-400: #7871C1; $base-500: #5750A5; $base-600: #48437F; $base-700: #37345B; $base-800: #27253C; $base-900: #191825; $base-hover: #473EAF; $base-subtle: #D5D3EB;
{
"color": {
"base": {
"value": "#685FC7",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F4F3FB",
"type": "color"
},
"100": {
"value": "#E2E0F5",
"type": "color"
},
"200": {
"value": "#C6C3EA",
"type": "color"
},
"300": {
"value": "#9E99D7",
"type": "color"
},
"400": {
"value": "#7871C1",
"type": "color"
},
"500": {
"value": "#5750A5",
"type": "color"
},
"600": {
"value": "#48437F",
"type": "color"
},
"700": {
"value": "#37345B",
"type": "color"
},
"800": {
"value": "#27253C",
"type": "color"
},
"900": {
"value": "#191825",
"type": "color"
}
}
}
}