#1B87A0 is a mid-toned, cool blue. 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 #1B87A0 works with other colors. Named schemes with #1B87A0 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 is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Dark Cyan.
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 sits between cream and a deep berry here, softened by a blush accent and grounded by 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 #1B87A0 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 #1B87A0 at work across the surfaces designers actually ship.
:root {
--color-base: #1B87A0;
--color-base-rgb: 27 135 160;
--color-base-oklch: oklch(57.8% 0.097 218.2);
--color-50: #F1FBFD;
--color-100: #DBF4FA;
--color-200: #B9E8F3;
--color-300: #8AD5E5;
--color-400: #5EBED4;
--color-500: #3CA2B9;
--color-600: #357D8D;
--color-700: #2B5A64;
--color-800: #1F3B42;
--color-900: #152528;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
dark-cyan: {
50: '#F1FBFD',
100: '#DBF4FA',
200: '#B9E8F3',
300: '#8AD5E5',
400: '#5EBED4',
500: '#3CA2B9',
600: '#357D8D',
700: '#2B5A64',
800: '#1F3B42',
900: '#152528',
},
}
$base: #1B87A0; $base-ink: #141310; $base-50: #F1FBFD; $base-100: #DBF4FA; $base-200: #B9E8F3; $base-300: #8AD5E5; $base-400: #5EBED4; $base-500: #3CA2B9; $base-600: #357D8D; $base-700: #2B5A64; $base-800: #1F3B42; $base-900: #152528; $base-hover: #166D81; $base-subtle: #B5DFE9;
{
"color": {
"base": {
"value": "#1B87A0",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FBFD",
"type": "color"
},
"100": {
"value": "#DBF4FA",
"type": "color"
},
"200": {
"value": "#B9E8F3",
"type": "color"
},
"300": {
"value": "#8AD5E5",
"type": "color"
},
"400": {
"value": "#5EBED4",
"type": "color"
},
"500": {
"value": "#3CA2B9",
"type": "color"
},
"600": {
"value": "#357D8D",
"type": "color"
},
"700": {
"value": "#2B5A64",
"type": "color"
},
"800": {
"value": "#1F3B42",
"type": "color"
},
"900": {
"value": "#152528",
"type": "color"
}
}
}
}