#778EAE is a mid-toned, 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 #778EAE works with other colors. Named schemes with #778EAE 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 #778EAE 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 #778EAE at work across the surfaces designers actually ship.
:root {
--color-base: #778EAE;
--color-base-rgb: 119 142 174;
--color-base-oklch: oklch(64.1% 0.055 256.7);
--color-50: #F5F7F9;
--color-100: #E5EAF0;
--color-200: #CCD5E0;
--color-300: #A7B5C8;
--color-400: #8496AE;
--color-500: #647790;
--color-600: #515E70;
--color-700: #3D4651;
--color-800: #2A2F36;
--color-900: #1B1E22;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
light-slate-gray: {
50: '#F5F7F9',
100: '#E5EAF0',
200: '#CCD5E0',
300: '#A7B5C8',
400: '#8496AE',
500: '#647790',
600: '#515E70',
700: '#3D4651',
800: '#2A2F36',
900: '#1B1E22',
},
}
$base: #778EAE; $base-ink: #141310; $base-50: #F5F7F9; $base-100: #E5EAF0; $base-200: #CCD5E0; $base-300: #A7B5C8; $base-400: #8496AE; $base-500: #647790; $base-600: #515E70; $base-700: #3D4651; $base-800: #2A2F36; $base-900: #1B1E22; $base-hover: #576F91; $base-subtle: #D8DDE4;
{
"color": {
"base": {
"value": "#778EAE",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F7F9",
"type": "color"
},
"100": {
"value": "#E5EAF0",
"type": "color"
},
"200": {
"value": "#CCD5E0",
"type": "color"
},
"300": {
"value": "#A7B5C8",
"type": "color"
},
"400": {
"value": "#8496AE",
"type": "color"
},
"500": {
"value": "#647790",
"type": "color"
},
"600": {
"value": "#515E70",
"type": "color"
},
"700": {
"value": "#3D4651",
"type": "color"
},
"800": {
"value": "#2A2F36",
"type": "color"
},
"900": {
"value": "#1B1E22",
"type": "color"
}
}
}
}