#4341BD is a mid-toned, cool violet. On the Color Lab it reads clean and engineered, bold and ownable. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #4341BD works with other colors. Named schemes with #4341BD in its natural role, and a note on why the supporting colors balance it.
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 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.
Cerulean opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Cerulean glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.
How #4341BD 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 #4341BD at work across the surfaces designers actually ship.
:root {
--color-base: #4341BD;
--color-base-rgb: 67 65 189;
--color-base-oklch: oklch(45.8% 0.189 276.7);
--color-50: #F3F3FB;
--color-100: #E0E0F5;
--color-200: #C3C2EA;
--color-300: #9998D7;
--color-400: #7270C2;
--color-500: #514FA6;
--color-600: #43427F;
--color-700: #34345B;
--color-800: #25253C;
--color-900: #181825;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
cerulean: {
50: '#F3F3FB',
100: '#E0E0F5',
200: '#C3C2EA',
300: '#9998D7',
400: '#7270C2',
500: '#514FA6',
600: '#43427F',
700: '#34345B',
800: '#25253C',
900: '#181825',
},
}
$base: #4341BD; $base-ink: #FFFFFF; $base-50: #F3F3FB; $base-100: #E0E0F5; $base-200: #C3C2EA; $base-300: #9998D7; $base-400: #7270C2; $base-500: #514FA6; $base-600: #43427F; $base-700: #34345B; $base-800: #25253C; $base-900: #181825; $base-hover: #363498; $base-subtle: #CBCBE7;
{
"color": {
"base": {
"value": "#4341BD",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F3FB",
"type": "color"
},
"100": {
"value": "#E0E0F5",
"type": "color"
},
"200": {
"value": "#C3C2EA",
"type": "color"
},
"300": {
"value": "#9998D7",
"type": "color"
},
"400": {
"value": "#7270C2",
"type": "color"
},
"500": {
"value": "#514FA6",
"type": "color"
},
"600": {
"value": "#43427F",
"type": "color"
},
"700": {
"value": "#34345B",
"type": "color"
},
"800": {
"value": "#25253C",
"type": "color"
},
"900": {
"value": "#181825",
"type": "color"
}
}
}
}