#617FFA is a mid-toned, cool violet. On the Color Lab it reads clean and engineered, bold and ownable. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #617FFA works with other colors. Named schemes with #617FFA in its natural role, and a note on why the supporting colors balance it.
Signal Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Signal Blue.
Signal Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Signal Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Signal 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 Signal Blue carrying the quiet middle.
Signal Blue glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.
How #617FFA 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 #617FFA at work across the surfaces designers actually ship.
:root {
--color-base: #617FFA;
--color-base-rgb: 97 127 250;
--color-base-oklch: oklch(63.6% 0.186 270.1);
--color-50: #F0F3FE;
--color-100: #D8DFFD;
--color-200: #B1C0FC;
--color-300: #7B93F4;
--color-400: #4B6AE7;
--color-500: #2849CD;
--color-600: #263E9B;
--color-700: #21316D;
--color-800: #1A2347;
--color-900: #12172B;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
signal-blue: {
50: '#F0F3FE',
100: '#D8DFFD',
200: '#B1C0FC',
300: '#7B93F4',
400: '#4B6AE7',
500: '#2849CD',
600: '#263E9B',
700: '#21316D',
800: '#1A2347',
900: '#12172B',
},
}
$base: #617FFA; $base-ink: #141310; $base-50: #F0F3FE; $base-100: #D8DFFD; $base-200: #B1C0FC; $base-300: #7B93F4; $base-400: #4B6AE7; $base-500: #2849CD; $base-600: #263E9B; $base-700: #21316D; $base-800: #1A2347; $base-900: #12172B; $base-hover: #1D49F8; $base-subtle: #D5DCF8;
{
"color": {
"base": {
"value": "#617FFA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F3FE",
"type": "color"
},
"100": {
"value": "#D8DFFD",
"type": "color"
},
"200": {
"value": "#B1C0FC",
"type": "color"
},
"300": {
"value": "#7B93F4",
"type": "color"
},
"400": {
"value": "#4B6AE7",
"type": "color"
},
"500": {
"value": "#2849CD",
"type": "color"
},
"600": {
"value": "#263E9B",
"type": "color"
},
"700": {
"value": "#21316D",
"type": "color"
},
"800": {
"value": "#1A2347",
"type": "color"
},
"900": {
"value": "#12172B",
"type": "color"
}
}
}
}