#15958D is a mid-toned, cool cyan. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #15958D works with other colors. Named schemes with #15958D 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 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 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 #15958D 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 #15958D at work across the surfaces designers actually ship.
:root {
--color-base: #15958D;
--color-base-rgb: 21 149 141;
--color-base-oklch: oklch(60.5% 0.102 188.0);
--color-50: #F1FEFD;
--color-100: #DAFBF9;
--color-200: #B8F5F1;
--color-300: #87E8E2;
--color-400: #5BD7CF;
--color-500: #38BCB4;
--color-600: #329089;
--color-700: #296662;
--color-800: #1E4240;
--color-900: #142927;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
dark-cyan: {
50: '#F1FEFD',
100: '#DAFBF9',
200: '#B8F5F1',
300: '#87E8E2',
400: '#5BD7CF',
500: '#38BCB4',
600: '#329089',
700: '#296662',
800: '#1E4240',
900: '#142927',
},
}
$base: #15958D; $base-ink: #141310; $base-50: #F1FEFD; $base-100: #DAFBF9; $base-200: #B8F5F1; $base-300: #87E8E2; $base-400: #5BD7CF; $base-500: #38BCB4; $base-600: #329089; $base-700: #296662; $base-800: #1E4240; $base-900: #142927; $base-hover: #11766F; $base-subtle: #AFE9E5;
{
"color": {
"base": {
"value": "#15958D",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEFD",
"type": "color"
},
"100": {
"value": "#DAFBF9",
"type": "color"
},
"200": {
"value": "#B8F5F1",
"type": "color"
},
"300": {
"value": "#87E8E2",
"type": "color"
},
"400": {
"value": "#5BD7CF",
"type": "color"
},
"500": {
"value": "#38BCB4",
"type": "color"
},
"600": {
"value": "#329089",
"type": "color"
},
"700": {
"value": "#296662",
"type": "color"
},
"800": {
"value": "#1E4240",
"type": "color"
},
"900": {
"value": "#142927",
"type": "color"
}
}
}
}