#39128D 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 #39128D works with other colors. Named schemes with #39128D 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 #39128D 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 #39128D at work across the surfaces designers actually ship.
:root {
--color-base: #39128D;
--color-base-rgb: 57 18 141;
--color-base-oklch: oklch(34.0% 0.179 286.4);
--color-50: #F5F1FE;
--color-100: #E5DAFB;
--color-200: #CBB7F5;
--color-300: #A586E9;
--color-400: #8259D9;
--color-500: #6237BE;
--color-600: #4F3191;
--color-700: #3C2866;
--color-800: #2A1E43;
--color-900: #1B1429;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
indigo: {
50: '#F5F1FE',
100: '#E5DAFB',
200: '#CBB7F5',
300: '#A586E9',
400: '#8259D9',
500: '#6237BE',
600: '#4F3191',
700: '#3C2866',
800: '#2A1E43',
900: '#1B1429',
},
}
$base: #39128D; $base-ink: #FFFFFF; $base-50: #F5F1FE; $base-100: #E5DAFB; $base-200: #CBB7F5; $base-300: #A586E9; $base-400: #8259D9; $base-500: #6237BE; $base-600: #4F3191; $base-700: #3C2866; $base-800: #2A1E43; $base-900: #1B1429; $base-hover: #2D0F70; $base-subtle: #BFABE9;
{
"color": {
"base": {
"value": "#39128D",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F1FE",
"type": "color"
},
"100": {
"value": "#E5DAFB",
"type": "color"
},
"200": {
"value": "#CBB7F5",
"type": "color"
},
"300": {
"value": "#A586E9",
"type": "color"
},
"400": {
"value": "#8259D9",
"type": "color"
},
"500": {
"value": "#6237BE",
"type": "color"
},
"600": {
"value": "#4F3191",
"type": "color"
},
"700": {
"value": "#3C2866",
"type": "color"
},
"800": {
"value": "#2A1E43",
"type": "color"
},
"900": {
"value": "#1B1429",
"type": "color"
}
}
}
}