#359EAE 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 #359EAE works with other colors. Named schemes with #359EAE in its natural role, and a note on why the supporting colors balance it.
Cadet Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cadet Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Cadet 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 Cadet Blue.
Cadet 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 Cadet Blue carrying the quiet middle.
Cadet 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 #359EAE 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 #359EAE at work across the surfaces designers actually ship.
:root {
--color-base: #359EAE;
--color-base-rgb: 53 158 174;
--color-base-oklch: oklch(64.7% 0.096 209.5);
--color-50: #F3FBFC;
--color-100: #DFF3F6;
--color-200: #C1E6EC;
--color-300: #95D1DA;
--color-400: #6DB9C5;
--color-500: #4C9DA9;
--color-600: #407982;
--color-700: #32575D;
--color-800: #243A3D;
--color-900: #172426;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
cadet-blue: {
50: '#F3FBFC',
100: '#DFF3F6',
200: '#C1E6EC',
300: '#95D1DA',
400: '#6DB9C5',
500: '#4C9DA9',
600: '#407982',
700: '#32575D',
800: '#243A3D',
900: '#172426',
},
}
$base: #359EAE; $base-ink: #141310; $base-50: #F3FBFC; $base-100: #DFF3F6; $base-200: #C1E6EC; $base-300: #95D1DA; $base-400: #6DB9C5; $base-500: #4C9DA9; $base-600: #407982; $base-700: #32575D; $base-800: #243A3D; $base-900: #172426; $base-hover: #2B7F8C; $base-subtle: #C4E1E6;
{
"color": {
"base": {
"value": "#359EAE",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FBFC",
"type": "color"
},
"100": {
"value": "#DFF3F6",
"type": "color"
},
"200": {
"value": "#C1E6EC",
"type": "color"
},
"300": {
"value": "#95D1DA",
"type": "color"
},
"400": {
"value": "#6DB9C5",
"type": "color"
},
"500": {
"value": "#4C9DA9",
"type": "color"
},
"600": {
"value": "#407982",
"type": "color"
},
"700": {
"value": "#32575D",
"type": "color"
},
"800": {
"value": "#243A3D",
"type": "color"
},
"900": {
"value": "#172426",
"type": "color"
}
}
}
}