#09453B is a deep, cool cyan. On the Color Lab it reads quietly premium. It reproduces cleanly in print.
Not just a swatch — here's how #09453B works with other colors. Named schemes with #09453B in its natural role, and a note on why the supporting colors balance it.
Brunswick Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Brunswick Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Brunswick Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Brunswick Green carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.
Brunswick Green 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 Brunswick Green carrying the quiet middle.
How #09453B 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 #09453B at work across the surfaces designers actually ship.
:root {
--color-base: #09453B;
--color-base-rgb: 9 69 59;
--color-base-oklch: oklch(35.2% 0.060 178.3);
--color-50: #F1FEFC;
--color-100: #DAFBF6;
--color-200: #B7F5EB;
--color-300: #86E9D9;
--color-400: #59D9C3;
--color-500: #37BEA8;
--color-600: #319181;
--color-700: #28665C;
--color-800: #1E433D;
--color-900: #142926;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
brunswick-green: {
50: '#F1FEFC',
100: '#DAFBF6',
200: '#B7F5EB',
300: '#86E9D9',
400: '#59D9C3',
500: '#37BEA8',
600: '#319181',
700: '#28665C',
800: '#1E433D',
900: '#142926',
},
}
$base: #09453B; $base-ink: #FFFFFF; $base-50: #F1FEFC; $base-100: #DAFBF6; $base-200: #B7F5EB; $base-300: #86E9D9; $base-400: #59D9C3; $base-500: #37BEA8; $base-600: #319181; $base-700: #28665C; $base-800: #1E433D; $base-900: #142926; $base-hover: #07362E; $base-subtle: #98E4D7;
{
"color": {
"base": {
"value": "#09453B",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEFC",
"type": "color"
},
"100": {
"value": "#DAFBF6",
"type": "color"
},
"200": {
"value": "#B7F5EB",
"type": "color"
},
"300": {
"value": "#86E9D9",
"type": "color"
},
"400": {
"value": "#59D9C3",
"type": "color"
},
"500": {
"value": "#37BEA8",
"type": "color"
},
"600": {
"value": "#319181",
"type": "color"
},
"700": {
"value": "#28665C",
"type": "color"
},
"800": {
"value": "#1E433D",
"type": "color"
},
"900": {
"value": "#142926",
"type": "color"
}
}
}
}