#2872BC is a mid-toned, cool indigo. 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 #2872BC works with other colors. Named schemes with #2872BC in its natural role, and a note on why the supporting colors balance it.
True Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
True 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 True Blue.
True 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.
True Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
True 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 True Blue carrying the quiet middle.
How #2872BC 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 #2872BC at work across the surfaces designers actually ship.
:root {
--color-base: #2872BC;
--color-base-rgb: 40 114 188;
--color-base-oklch: oklch(54.5% 0.136 251.9);
--color-50: #F2F7FD;
--color-100: #DDEBF9;
--color-200: #BCD6F1;
--color-300: #8EB8E2;
--color-400: #6399CF;
--color-500: #417AB4;
--color-600: #386189;
--color-700: #2D4762;
--color-800: #213040;
--color-900: #161F27;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
true-blue: {
50: '#F2F7FD',
100: '#DDEBF9',
200: '#BCD6F1',
300: '#8EB8E2',
400: '#6399CF',
500: '#417AB4',
600: '#386189',
700: '#2D4762',
800: '#213040',
900: '#161F27',
},
}
$base: #2872BC; $base-ink: #FFFFFF; $base-50: #F2F7FD; $base-100: #DDEBF9; $base-200: #BCD6F1; $base-300: #8EB8E2; $base-400: #6399CF; $base-500: #417AB4; $base-600: #386189; $base-700: #2D4762; $base-800: #213040; $base-900: #161F27; $base-hover: #205C97; $base-subtle: #C0D5EA;
{
"color": {
"base": {
"value": "#2872BC",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F7FD",
"type": "color"
},
"100": {
"value": "#DDEBF9",
"type": "color"
},
"200": {
"value": "#BCD6F1",
"type": "color"
},
"300": {
"value": "#8EB8E2",
"type": "color"
},
"400": {
"value": "#6399CF",
"type": "color"
},
"500": {
"value": "#417AB4",
"type": "color"
},
"600": {
"value": "#386189",
"type": "color"
},
"700": {
"value": "#2D4762",
"type": "color"
},
"800": {
"value": "#213040",
"type": "color"
},
"900": {
"value": "#161F27",
"type": "color"
}
}
}
}