#07313F is a muted, cool blue. On the Color Lab it reads clean and engineered, quietly premium. It is too dark to lead as a primary accent and reproduces cleanly in print.
Not just a swatch — here's how #07313F works with other colors. Named schemes with #07313F in its natural role, and a note on why the supporting colors balance it.
Prussian Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Prussian Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Prussian 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 Prussian Blue.
Prussian Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Prussian 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 Prussian Blue carrying the quiet middle.
How #07313F 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 #07313F at work across the surfaces designers actually ship.
:root {
--color-base: #07313F;
--color-base-rgb: 7 49 63;
--color-base-oklch: oklch(29.3% 0.050 225.4);
--color-50: #F1FBFE;
--color-100: #D9F3FC;
--color-200: #B6E6F7;
--color-300: #84D1EB;
--color-400: #57BADB;
--color-500: #349EC1;
--color-600: #2F7A93;
--color-700: #275868;
--color-800: #1D3A44;
--color-900: #142429;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
prussian-blue: {
50: '#F1FBFE',
100: '#D9F3FC',
200: '#B6E6F7',
300: '#84D1EB',
400: '#57BADB',
500: '#349EC1',
600: '#2F7A93',
700: '#275868',
800: '#1D3A44',
900: '#142429',
},
}
$base: #07313F; $base-ink: #FFFFFF; $base-50: #F1FBFE; $base-100: #D9F3FC; $base-200: #B6E6F7; $base-300: #84D1EB; $base-400: #57BADB; $base-500: #349EC1; $base-600: #2F7A93; $base-700: #275868; $base-800: #1D3A44; $base-900: #142429; $base-hover: #062833; $base-subtle: #95D1E5;
{
"color": {
"base": {
"value": "#07313F",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FBFE",
"type": "color"
},
"100": {
"value": "#D9F3FC",
"type": "color"
},
"200": {
"value": "#B6E6F7",
"type": "color"
},
"300": {
"value": "#84D1EB",
"type": "color"
},
"400": {
"value": "#57BADB",
"type": "color"
},
"500": {
"value": "#349EC1",
"type": "color"
},
"600": {
"value": "#2F7A93",
"type": "color"
},
"700": {
"value": "#275868",
"type": "color"
},
"800": {
"value": "#1D3A44",
"type": "color"
},
"900": {
"value": "#142429",
"type": "color"
}
}
}
}