#6C859D is a muted, cool indigo. On the Color Lab it reads clean and engineered, restrained and easy to live with. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #6C859D works with other colors. Named schemes with #6C859D in its natural role, and a note on why the supporting colors balance it.
Light Slate Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Light Slate Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Light Slate Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Light Slate Gray.
Light Slate Gray plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Light Slate Gray 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 Light Slate Gray carrying the quiet middle.
How #6C859D 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 #6C859D at work across the surfaces designers actually ship.
:root {
--color-base: #6C859D;
--color-base-rgb: 108 133 157;
--color-base-oklch: oklch(60.6% 0.047 247.5);
--color-50: #F6F7F9;
--color-100: #E6EBEF;
--color-200: #CED6DE;
--color-300: #ABB8C5;
--color-400: #889AAA;
--color-500: #697B8C;
--color-600: #54616D;
--color-700: #3F484F;
--color-800: #2C3135;
--color-900: #1C1F21;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
light-slate-gray: {
50: '#F6F7F9',
100: '#E6EBEF',
200: '#CED6DE',
300: '#ABB8C5',
400: '#889AAA',
500: '#697B8C',
600: '#54616D',
700: '#3F484F',
800: '#2C3135',
900: '#1C1F21',
},
}
$base: #6C859D; $base-ink: #141310; $base-50: #F6F7F9; $base-100: #E6EBEF; $base-200: #CED6DE; $base-300: #ABB8C5; $base-400: #889AAA; $base-500: #697B8C; $base-600: #54616D; $base-700: #3F484F; $base-800: #2C3135; $base-900: #1C1F21; $base-hover: #556B7F; $base-subtle: #D5DAE0;
{
"color": {
"base": {
"value": "#6C859D",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F6F7F9",
"type": "color"
},
"100": {
"value": "#E6EBEF",
"type": "color"
},
"200": {
"value": "#CED6DE",
"type": "color"
},
"300": {
"value": "#ABB8C5",
"type": "color"
},
"400": {
"value": "#889AAA",
"type": "color"
},
"500": {
"value": "#697B8C",
"type": "color"
},
"600": {
"value": "#54616D",
"type": "color"
},
"700": {
"value": "#3F484F",
"type": "color"
},
"800": {
"value": "#2C3135",
"type": "color"
},
"900": {
"value": "#1C1F21",
"type": "color"
}
}
}
}