#6372DA 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 #6372DA works with other colors. Named schemes with #6372DA in its natural role, and a note on why the supporting colors balance it.
Royal Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Royal 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 Royal Blue.
Royal 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.
Royal Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Royal 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 Royal Blue carrying the quiet middle.
How #6372DA 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 #6372DA at work across the surfaces designers actually ship.
:root {
--color-base: #6372DA;
--color-base-rgb: 99 114 218;
--color-base-oklch: oklch(59.1% 0.158 274.4);
--color-50: #F2F4FD;
--color-100: #DDE1F8;
--color-200: #BDC4EF;
--color-300: #909AE0;
--color-400: #6673CC;
--color-500: #4452B1;
--color-600: #3A4587;
--color-700: #2E3560;
--color-800: #22263F;
--color-900: #161827;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
royal-blue: {
50: '#F2F4FD',
100: '#DDE1F8',
200: '#BDC4EF',
300: '#909AE0',
400: '#6673CC',
500: '#4452B1',
600: '#3A4587',
700: '#2E3560',
800: '#22263F',
900: '#161827',
},
}
$base: #6372DA; $base-ink: #141310; $base-50: #F2F4FD; $base-100: #DDE1F8; $base-200: #BDC4EF; $base-300: #909AE0; $base-400: #6673CC; $base-500: #4452B1; $base-600: #3A4587; $base-700: #2E3560; $base-800: #22263F; $base-900: #161827; $base-hover: #3045CD; $base-subtle: #D4D8F0;
{
"color": {
"base": {
"value": "#6372DA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F4FD",
"type": "color"
},
"100": {
"value": "#DDE1F8",
"type": "color"
},
"200": {
"value": "#BDC4EF",
"type": "color"
},
"300": {
"value": "#909AE0",
"type": "color"
},
"400": {
"value": "#6673CC",
"type": "color"
},
"500": {
"value": "#4452B1",
"type": "color"
},
"600": {
"value": "#3A4587",
"type": "color"
},
"700": {
"value": "#2E3560",
"type": "color"
},
"800": {
"value": "#22263F",
"type": "color"
},
"900": {
"value": "#161827",
"type": "color"
}
}
}
}