#3D47BC is a mid-toned, cool violet. 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 #3D47BC works with other colors. Named schemes with #3D47BC in its natural role, and a note on why the supporting colors balance it.
Cerulean opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cerulean is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Cerulean.
Cerulean plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Cerulean sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Cerulean 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 Cerulean carrying the quiet middle.
How #3D47BC 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 #3D47BC at work across the surfaces designers actually ship.
:root {
--color-base: #3D47BC;
--color-base-rgb: 61 71 188;
--color-base-oklch: oklch(46.4% 0.181 273.2);
--color-50: #F3F4FC;
--color-100: #E0E1F6;
--color-200: #C1C5EB;
--color-300: #979CD9;
--color-400: #6F76C3;
--color-500: #4E55A7;
--color-600: #414681;
--color-700: #33365C;
--color-800: #24263D;
--color-900: #181926;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
cerulean: {
50: '#F3F4FC',
100: '#E0E1F6',
200: '#C1C5EB',
300: '#979CD9',
400: '#6F76C3',
500: '#4E55A7',
600: '#414681',
700: '#33365C',
800: '#24263D',
900: '#181926',
},
}
$base: #3D47BC; $base-ink: #FFFFFF; $base-50: #F3F4FC; $base-100: #E0E1F6; $base-200: #C1C5EB; $base-300: #979CD9; $base-400: #6F76C3; $base-500: #4E55A7; $base-600: #414681; $base-700: #33365C; $base-800: #24263D; $base-900: #181926; $base-hover: #313997; $base-subtle: #C9CBE7;
{
"color": {
"base": {
"value": "#3D47BC",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F4FC",
"type": "color"
},
"100": {
"value": "#E0E1F6",
"type": "color"
},
"200": {
"value": "#C1C5EB",
"type": "color"
},
"300": {
"value": "#979CD9",
"type": "color"
},
"400": {
"value": "#6F76C3",
"type": "color"
},
"500": {
"value": "#4E55A7",
"type": "color"
},
"600": {
"value": "#414681",
"type": "color"
},
"700": {
"value": "#33365C",
"type": "color"
},
"800": {
"value": "#24263D",
"type": "color"
},
"900": {
"value": "#181926",
"type": "color"
}
}
}
}