#340689 is a deep, cool purple. On the Color Lab it reads clean and engineered, quietly premium. It sits well as a supporting tone.
Not just a swatch — here's how #340689 works with other colors. Named schemes with #340689 in its natural role, and a note on why the supporting colors balance it.
Indigo carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.
Indigo adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Indigo.
Indigo opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Indigo plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Indigo 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 Indigo carrying the quiet middle.
How #340689 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 #340689 at work across the surfaces designers actually ship.
:root {
--color-base: #340689;
--color-base-rgb: 52 6 137;
--color-base-oklch: oklch(32.2% 0.182 285.5);
--color-50: #F5F0FE;
--color-100: #E5D8FD;
--color-200: #CBB1FC;
--color-300: #A67CF3;
--color-400: #824DE5;
--color-500: #6229CB;
--color-600: #50289A;
--color-700: #3C226D;
--color-800: #2A1A47;
--color-900: #1B122B;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
indigo: {
50: '#F5F0FE',
100: '#E5D8FD',
200: '#CBB1FC',
300: '#A67CF3',
400: '#824DE5',
500: '#6229CB',
600: '#50289A',
700: '#3C226D',
800: '#2A1A47',
900: '#1B122B',
},
}
$base: #340689; $base-ink: #FFFFFF; $base-50: #F5F0FE; $base-100: #E5D8FD; $base-200: #CBB1FC; $base-300: #A67CF3; $base-400: #824DE5; $base-500: #6229CB; $base-600: #50289A; $base-700: #3C226D; $base-800: #2A1A47; $base-900: #1B122B; $base-hover: #29056E; $base-subtle: #BCA1EE;
{
"color": {
"base": {
"value": "#340689",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F0FE",
"type": "color"
},
"100": {
"value": "#E5D8FD",
"type": "color"
},
"200": {
"value": "#CBB1FC",
"type": "color"
},
"300": {
"value": "#A67CF3",
"type": "color"
},
"400": {
"value": "#824DE5",
"type": "color"
},
"500": {
"value": "#6229CB",
"type": "color"
},
"600": {
"value": "#50289A",
"type": "color"
},
"700": {
"value": "#3C226D",
"type": "color"
},
"800": {
"value": "#2A1A47",
"type": "color"
},
"900": {
"value": "#1B122B",
"type": "color"
}
}
}
}