#7978BB is a mid-toned, cool purple. On the Color Lab it reads clean and engineered, with a faded, vintage edge. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #7978BB works with other colors. Named schemes with #7978BB in its natural role, and a note on why the supporting colors balance it.
Glaucous opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Glaucous plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Glaucous 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.
Glaucous sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Glaucous 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 Glaucous carrying the quiet middle.
How #7978BB 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 #7978BB at work across the surfaces designers actually ship.
:root {
--color-base: #7978BB;
--color-base-rgb: 121 120 187;
--color-base-oklch: oklch(60.2% 0.101 283.6);
--color-50: #F5F5FA;
--color-100: #E4E3F2;
--color-200: #C9C9E4;
--color-300: #A3A2CD;
--color-400: #7F7EB4;
--color-500: #5E5D97;
--color-600: #4D4C75;
--color-700: #3B3A55;
--color-800: #292938;
--color-900: #1A1A23;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
glaucous: {
50: '#F5F5FA',
100: '#E4E3F2',
200: '#C9C9E4',
300: '#A3A2CD',
400: '#7F7EB4',
500: '#5E5D97',
600: '#4D4C75',
700: '#3B3A55',
800: '#292938',
900: '#1A1A23',
},
}
$base: #7978BB; $base-ink: #141310; $base-50: #F5F5FA; $base-100: #E4E3F2; $base-200: #C9C9E4; $base-300: #A3A2CD; $base-400: #7F7EB4; $base-500: #5E5D97; $base-600: #4D4C75; $base-700: #3B3A55; $base-800: #292938; $base-900: #1A1A23; $base-hover: #5352A3; $base-subtle: #D9D9E8;
{
"color": {
"base": {
"value": "#7978BB",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F5F5FA",
"type": "color"
},
"100": {
"value": "#E4E3F2",
"type": "color"
},
"200": {
"value": "#C9C9E4",
"type": "color"
},
"300": {
"value": "#A3A2CD",
"type": "color"
},
"400": {
"value": "#7F7EB4",
"type": "color"
},
"500": {
"value": "#5E5D97",
"type": "color"
},
"600": {
"value": "#4D4C75",
"type": "color"
},
"700": {
"value": "#3B3A55",
"type": "color"
},
"800": {
"value": "#292938",
"type": "color"
},
"900": {
"value": "#1A1A23",
"type": "color"
}
}
}
}