#518F87 is a mid-toned, cool cyan. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #518F87 works with other colors. Named schemes with #518F87 in its natural role, and a note on why the supporting colors balance it.
Dark Cyan opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Cyan keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Dark Cyan plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Dark Cyan 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.
Dark Cyan 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 Dark Cyan carrying the quiet middle.
How #518F87 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 #518F87 at work across the surfaces designers actually ship.
:root {
--color-base: #518F87;
--color-base-rgb: 81 143 135;
--color-base-oklch: oklch(60.6% 0.066 185.0);
--color-50: #F5FAF9;
--color-100: #E5F1EF;
--color-200: #CBE2DF;
--color-300: #A6CAC5;
--color-400: #82B0AA;
--color-500: #62938C;
--color-600: #4F726E;
--color-700: #3C5350;
--color-800: #2A3735;
--color-900: #1B2221;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
dark-cyan: {
50: '#F5FAF9',
100: '#E5F1EF',
200: '#CBE2DF',
300: '#A6CAC5',
400: '#82B0AA',
500: '#62938C',
600: '#4F726E',
700: '#3C5350',
800: '#2A3735',
900: '#1B2221',
},
}
$base: #518F87; $base-ink: #141310; $base-50: #F5FAF9; $base-100: #E5F1EF; $base-200: #CBE2DF; $base-300: #A6CAC5; $base-400: #82B0AA; $base-500: #62938C; $base-600: #4F726E; $base-700: #3C5350; $base-800: #2A3735; $base-900: #1B2221; $base-hover: #41736C; $base-subtle: #CBDDDB;
{
"color": {
"base": {
"value": "#518F87",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5FAF9",
"type": "color"
},
"100": {
"value": "#E5F1EF",
"type": "color"
},
"200": {
"value": "#CBE2DF",
"type": "color"
},
"300": {
"value": "#A6CAC5",
"type": "color"
},
"400": {
"value": "#82B0AA",
"type": "color"
},
"500": {
"value": "#62938C",
"type": "color"
},
"600": {
"value": "#4F726E",
"type": "color"
},
"700": {
"value": "#3C5350",
"type": "color"
},
"800": {
"value": "#2A3735",
"type": "color"
},
"900": {
"value": "#1B2221",
"type": "color"
}
}
}
}