#41239B is a deep, cool purple. 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 #41239B works with other colors. Named schemes with #41239B in its natural role, and a note on why the supporting colors balance it.
Dark Slate Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Dark Slate 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.
Dark Slate Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.
Dark Slate Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Dark Slate 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 Dark Slate Blue carrying the quiet middle.
How #41239B 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 #41239B at work across the surfaces designers actually ship.
:root {
--color-base: #41239B;
--color-base-rgb: 65 35 155;
--color-base-oklch: oklch(38.1% 0.180 285.6);
--color-50: #F5F2FD;
--color-100: #E4DDF8;
--color-200: #C9BDF0;
--color-300: #A38FE0;
--color-400: #7F65CD;
--color-500: #5F43B2;
--color-600: #4D3A88;
--color-700: #3B2E61;
--color-800: #292140;
--color-900: #1A1627;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
dark-slate-blue: {
50: '#F5F2FD',
100: '#E4DDF8',
200: '#C9BDF0',
300: '#A38FE0',
400: '#7F65CD',
500: '#5F43B2',
600: '#4D3A88',
700: '#3B2E61',
800: '#292140',
900: '#1A1627',
},
}
$base: #41239B; $base-ink: #FFFFFF; $base-50: #F5F2FD; $base-100: #E4DDF8; $base-200: #C9BDF0; $base-300: #A38FE0; $base-400: #7F65CD; $base-500: #5F43B2; $base-600: #4D3A88; $base-700: #3B2E61; $base-800: #292140; $base-900: #1A1627; $base-hover: #341C7B; $base-subtle: #C3B8E6;
{
"color": {
"base": {
"value": "#41239B",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F2FD",
"type": "color"
},
"100": {
"value": "#E4DDF8",
"type": "color"
},
"200": {
"value": "#C9BDF0",
"type": "color"
},
"300": {
"value": "#A38FE0",
"type": "color"
},
"400": {
"value": "#7F65CD",
"type": "color"
},
"500": {
"value": "#5F43B2",
"type": "color"
},
"600": {
"value": "#4D3A88",
"type": "color"
},
"700": {
"value": "#3B2E61",
"type": "color"
},
"800": {
"value": "#292140",
"type": "color"
},
"900": {
"value": "#1A1627",
"type": "color"
}
}
}
}