#758CA3 is a muted, cool indigo. On the Color Lab it reads clean and engineered, restrained and easy to live with. It reproduces cleanly in print.
Not just a swatch — here's how #758CA3 works with other colors. Named schemes with #758CA3 in its natural role, and a note on why the supporting colors balance it.
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 opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Light Slate Gray sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.
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 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 #758CA3 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 #758CA3 at work across the surfaces designers actually ship.
:root {
--color-base: #758CA3;
--color-base-rgb: 117 140 163;
--color-base-oklch: oklch(63.0% 0.044 248.5);
--color-50: #F6F7F9;
--color-100: #E6EBEF;
--color-200: #CED6DE;
--color-300: #ABB8C5;
--color-400: #8899AA;
--color-500: #697A8C;
--color-600: #54616D;
--color-700: #3F474F;
--color-800: #2C3035;
--color-900: #1C1F21;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
light-slate-gray: {
50: '#F6F7F9',
100: '#E6EBEF',
200: '#CED6DE',
300: '#ABB8C5',
400: '#8899AA',
500: '#697A8C',
600: '#54616D',
700: '#3F474F',
800: '#2C3035',
900: '#1C1F21',
},
}
$base: #758CA3; $base-ink: #141310; $base-50: #F6F7F9; $base-100: #E6EBEF; $base-200: #CED6DE; $base-300: #ABB8C5; $base-400: #8899AA; $base-500: #697A8C; $base-600: #54616D; $base-700: #3F474F; $base-800: #2C3035; $base-900: #1C1F21; $base-hover: #5A7087; $base-subtle: #D7DDE2;
{
"color": {
"base": {
"value": "#758CA3",
"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": "#8899AA",
"type": "color"
},
"500": {
"value": "#697A8C",
"type": "color"
},
"600": {
"value": "#54616D",
"type": "color"
},
"700": {
"value": "#3F474F",
"type": "color"
},
"800": {
"value": "#2C3035",
"type": "color"
},
"900": {
"value": "#1C1F21",
"type": "color"
}
}
}
}