#005684 is a mid-toned, cool blue. On the Color Lab it reads clean and engineered, quietly premium. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #005684 works with other colors. Named schemes with #005684 in its natural role, and a note on why the supporting colors balance it.
Classic Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Classic 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 Classic Blue.
Classic 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.
Classic Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Classic 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 Classic Blue carrying the quiet middle.
How #005684 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 #005684 at work across the surfaces designers actually ship.
:root {
--color-base: #005684;
--color-base-rgb: 0 86 132;
--color-base-oklch: oklch(43.4% 0.103 241.9);
--color-50: #F0F9FE;
--color-100: #D8F0FD;
--color-200: #B1E1FC;
--color-300: #77CBF8;
--color-400: #46B2EC;
--color-500: #2295D2;
--color-600: #23749F;
--color-700: #1F5470;
--color-800: #183848;
--color-900: #11232C;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
classic-blue: {
50: '#F0F9FE',
100: '#D8F0FD',
200: '#B1E1FC',
300: '#77CBF8',
400: '#46B2EC',
500: '#2295D2',
600: '#23749F',
700: '#1F5470',
800: '#183848',
900: '#11232C',
},
}
$base: #005684; $base-ink: #FFFFFF; $base-50: #F0F9FE; $base-100: #D8F0FD; $base-200: #B1E1FC; $base-300: #77CBF8; $base-400: #46B2EC; $base-500: #2295D2; $base-600: #23749F; $base-700: #1F5470; $base-800: #183848; $base-900: #11232C; $base-hover: #00456A; $base-subtle: #9BD3F1;
{
"color": {
"base": {
"value": "#005684",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F9FE",
"type": "color"
},
"100": {
"value": "#D8F0FD",
"type": "color"
},
"200": {
"value": "#B1E1FC",
"type": "color"
},
"300": {
"value": "#77CBF8",
"type": "color"
},
"400": {
"value": "#46B2EC",
"type": "color"
},
"500": {
"value": "#2295D2",
"type": "color"
},
"600": {
"value": "#23749F",
"type": "color"
},
"700": {
"value": "#1F5470",
"type": "color"
},
"800": {
"value": "#183848",
"type": "color"
},
"900": {
"value": "#11232C",
"type": "color"
}
}
}
}