#738C8C is a muted, temperate cyan-blue. 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 #738C8C works with other colors. Named schemes with #738C8C 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 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 opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
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.
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.
How #738C8C 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 #738C8C at work across the surfaces designers actually ship.
:root {
--color-base: #738C8C;
--color-base-rgb: 115 140 140;
--color-base-oklch: oklch(62.1% 0.029 196.4);
--color-50: #F7F8F8;
--color-100: #E8EDED;
--color-200: #D2DADA;
--color-300: #B1BEBE;
--color-400: #91A1A1;
--color-500: #728383;
--color-600: #5B6767;
--color-700: #434B4B;
--color-800: #2E3333;
--color-900: #1D2020;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
light-slate-gray: {
50: '#F7F8F8',
100: '#E8EDED',
200: '#D2DADA',
300: '#B1BEBE',
400: '#91A1A1',
500: '#728383',
600: '#5B6767',
700: '#434B4B',
800: '#2E3333',
900: '#1D2020',
},
}
$base: #738C8C; $base-ink: #141310; $base-50: #F7F8F8; $base-100: #E8EDED; $base-200: #D2DADA; $base-300: #B1BEBE; $base-400: #91A1A1; $base-500: #728383; $base-600: #5B6767; $base-700: #434B4B; $base-800: #2E3333; $base-900: #1D2020; $base-hover: #5C7070; $base-subtle: #D6DCDC;
{
"color": {
"base": {
"value": "#738C8C",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F7F8F8",
"type": "color"
},
"100": {
"value": "#E8EDED",
"type": "color"
},
"200": {
"value": "#D2DADA",
"type": "color"
},
"300": {
"value": "#B1BEBE",
"type": "color"
},
"400": {
"value": "#91A1A1",
"type": "color"
},
"500": {
"value": "#728383",
"type": "color"
},
"600": {
"value": "#5B6767",
"type": "color"
},
"700": {
"value": "#434B4B",
"type": "color"
},
"800": {
"value": "#2E3333",
"type": "color"
},
"900": {
"value": "#1D2020",
"type": "color"
}
}
}
}