#508FCD 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 #508FCD works with other colors. Named schemes with #508FCD 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 #508FCD 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 #508FCD at work across the surfaces designers actually ship.
:root {
--color-base: #508FCD;
--color-base-rgb: 80 143 205;
--color-base-oklch: oklch(63.5% 0.114 249.7);
--color-50: #F3F7FC;
--color-100: #DFEBF7;
--color-200: #BFD6ED;
--color-300: #93B8DC;
--color-400: #6B99C7;
--color-500: #497AAC;
--color-600: #3E6184;
--color-700: #31475E;
--color-800: #23303E;
--color-900: #171F26;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
ocean-blue: {
50: '#F3F7FC',
100: '#DFEBF7',
200: '#BFD6ED',
300: '#93B8DC',
400: '#6B99C7',
500: '#497AAC',
600: '#3E6184',
700: '#31475E',
800: '#23303E',
900: '#171F26',
},
}
$base: #508FCD; $base-ink: #141310; $base-50: #F3F7FC; $base-100: #DFEBF7; $base-200: #BFD6ED; $base-300: #93B8DC; $base-400: #6B99C7; $base-500: #497AAC; $base-600: #3E6184; $base-700: #31475E; $base-800: #23303E; $base-900: #171F26; $base-hover: #3272B2; $base-subtle: #CFDDEC;
{
"color": {
"base": {
"value": "#508FCD",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F7FC",
"type": "color"
},
"100": {
"value": "#DFEBF7",
"type": "color"
},
"200": {
"value": "#BFD6ED",
"type": "color"
},
"300": {
"value": "#93B8DC",
"type": "color"
},
"400": {
"value": "#6B99C7",
"type": "color"
},
"500": {
"value": "#497AAC",
"type": "color"
},
"600": {
"value": "#3E6184",
"type": "color"
},
"700": {
"value": "#31475E",
"type": "color"
},
"800": {
"value": "#23303E",
"type": "color"
},
"900": {
"value": "#171F26",
"type": "color"
}
}
}
}