#676DCF is a mid-toned, cool violet. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #676DCF works with other colors. Named schemes with #676DCF in its natural role, and a note on why the supporting colors balance it.
Slate Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
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.
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.
Slate Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
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 Slate Blue carrying the quiet middle.
How #676DCF 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 #676DCF at work across the surfaces designers actually ship.
:root {
--color-base: #676DCF;
--color-base-rgb: 103 109 207;
--color-base-oklch: oklch(57.7% 0.148 278.0);
--color-50: #F3F3FC;
--color-100: #DFE1F6;
--color-200: #C1C3EB;
--color-300: #9699D9;
--color-400: #6E72C4;
--color-500: #4D51A8;
--color-600: #414481;
--color-700: #32355C;
--color-800: #24253D;
--color-900: #181826;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
slate-blue: {
50: '#F3F3FC',
100: '#DFE1F6',
200: '#C1C3EB',
300: '#9699D9',
400: '#6E72C4',
500: '#4D51A8',
600: '#414481',
700: '#32355C',
800: '#24253D',
900: '#181826',
},
}
$base: #676DCF; $base-ink: #141310; $base-50: #F3F3FC; $base-100: #DFE1F6; $base-200: #C1C3EB; $base-300: #9699D9; $base-400: #6E72C4; $base-500: #4D51A8; $base-600: #414481; $base-700: #32355C; $base-800: #24253D; $base-900: #181826; $base-hover: #3C42BD; $base-subtle: #D5D7ED;
{
"color": {
"base": {
"value": "#676DCF",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F3FC",
"type": "color"
},
"100": {
"value": "#DFE1F6",
"type": "color"
},
"200": {
"value": "#C1C3EB",
"type": "color"
},
"300": {
"value": "#9699D9",
"type": "color"
},
"400": {
"value": "#6E72C4",
"type": "color"
},
"500": {
"value": "#4D51A8",
"type": "color"
},
"600": {
"value": "#414481",
"type": "color"
},
"700": {
"value": "#32355C",
"type": "color"
},
"800": {
"value": "#24253D",
"type": "color"
},
"900": {
"value": "#181826",
"type": "color"
}
}
}
}