#155652 is a mid-toned, cool cyan. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #155652 works with other colors. Named schemes with #155652 in its natural role, and a note on why the supporting colors balance it.
Dark Slate Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Slate Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Dark Slate Gray 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 Slate Gray 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 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 Dark Slate Gray carrying the quiet middle.
How #155652 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 #155652 at work across the surfaces designers actually ship.
:root {
--color-base: #155652;
--color-base-rgb: 21 86 82;
--color-base-oklch: oklch(41.3% 0.063 189.0);
--color-50: #F2FCFC;
--color-100: #DDF8F6;
--color-200: #BDEFEC;
--color-300: #90DFDA;
--color-400: #67CBC5;
--color-500: #45B0A9;
--color-600: #3B8782;
--color-700: #2F605D;
--color-800: #223F3D;
--color-900: #162726;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-gray: {
50: '#F2FCFC',
100: '#DDF8F6',
200: '#BDEFEC',
300: '#90DFDA',
400: '#67CBC5',
500: '#45B0A9',
600: '#3B8782',
700: '#2F605D',
800: '#223F3D',
900: '#162726',
},
}
$base: #155652; $base-ink: #FFFFFF; $base-50: #F2FCFC; $base-100: #DDF8F6; $base-200: #BDEFEC; $base-300: #90DFDA; $base-400: #67CBC5; $base-500: #45B0A9; $base-600: #3B8782; $base-700: #2F605D; $base-800: #223F3D; $base-900: #162726; $base-hover: #114541; $base-subtle: #A7DFDB;
{
"color": {
"base": {
"value": "#155652",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2FCFC",
"type": "color"
},
"100": {
"value": "#DDF8F6",
"type": "color"
},
"200": {
"value": "#BDEFEC",
"type": "color"
},
"300": {
"value": "#90DFDA",
"type": "color"
},
"400": {
"value": "#67CBC5",
"type": "color"
},
"500": {
"value": "#45B0A9",
"type": "color"
},
"600": {
"value": "#3B8782",
"type": "color"
},
"700": {
"value": "#2F605D",
"type": "color"
},
"800": {
"value": "#223F3D",
"type": "color"
},
"900": {
"value": "#162726",
"type": "color"
}
}
}
}