#438CD0 is a mid-toned, cool indigo. 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 #438CD0 works with other colors. Named schemes with #438CD0 in its natural role, and a note on why the supporting colors balance it.
Ocean Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Ocean Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Ocean Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Ocean Blue.
Ocean 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 Ocean Blue carrying the quiet middle.
Ocean 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.
How #438CD0 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 #438CD0 at work across the surfaces designers actually ship.
:root {
--color-base: #438CD0;
--color-base-rgb: 67 140 208;
--color-base-oklch: oklch(62.4% 0.126 249.1);
--color-50: #F2F8FC;
--color-100: #DEEBF8;
--color-200: #BED7EF;
--color-300: #91B9DE;
--color-400: #679BCB;
--color-500: #467CAF;
--color-600: #3C6286;
--color-700: #2F4860;
--color-800: #22313F;
--color-900: #161F27;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
ocean-blue: {
50: '#F2F8FC',
100: '#DEEBF8',
200: '#BED7EF',
300: '#91B9DE',
400: '#679BCB',
500: '#467CAF',
600: '#3C6286',
700: '#2F4860',
800: '#22313F',
900: '#161F27',
},
}
$base: #438CD0; $base-ink: #141310; $base-50: #F2F8FC; $base-100: #DEEBF8; $base-200: #BED7EF; $base-300: #91B9DE; $base-400: #679BCB; $base-500: #467CAF; $base-600: #3C6286; $base-700: #2F4860; $base-800: #22313F; $base-900: #161F27; $base-hover: #2C70B0; $base-subtle: #CCDCEC;
{
"color": {
"base": {
"value": "#438CD0",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F8FC",
"type": "color"
},
"100": {
"value": "#DEEBF8",
"type": "color"
},
"200": {
"value": "#BED7EF",
"type": "color"
},
"300": {
"value": "#91B9DE",
"type": "color"
},
"400": {
"value": "#679BCB",
"type": "color"
},
"500": {
"value": "#467CAF",
"type": "color"
},
"600": {
"value": "#3C6286",
"type": "color"
},
"700": {
"value": "#2F4860",
"type": "color"
},
"800": {
"value": "#22313F",
"type": "color"
},
"900": {
"value": "#161F27",
"type": "color"
}
}
}
}