#5981FA 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 #5981FA works with other colors. Named schemes with #5981FA 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 #5981FA 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 #5981FA at work across the surfaces designers actually ship.
:root {
--color-base: #5981FA;
--color-base-rgb: 89 129 250;
--color-base-oklch: oklch(63.6% 0.186 267.2);
--color-50: #F0F4FE;
--color-100: #D8E1FD;
--color-200: #B1C3FC;
--color-300: #7B99F4;
--color-400: #4B72E7;
--color-500: #2851CD;
--color-600: #26449B;
--color-700: #21346D;
--color-800: #1A2547;
--color-900: #12182B;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
signal-blue: {
50: '#F0F4FE',
100: '#D8E1FD',
200: '#B1C3FC',
300: '#7B99F4',
400: '#4B72E7',
500: '#2851CD',
600: '#26449B',
700: '#21346D',
800: '#1A2547',
900: '#12182B',
},
}
$base: #5981FA; $base-ink: #141310; $base-50: #F0F4FE; $base-100: #D8E1FD; $base-200: #B1C3FC; $base-300: #7B99F4; $base-400: #4B72E7; $base-500: #2851CD; $base-600: #26449B; $base-700: #21346D; $base-800: #1A2547; $base-900: #12182B; $base-hover: #164EF8; $base-subtle: #D2DCF8;
{
"color": {
"base": {
"value": "#5981FA",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F4FE",
"type": "color"
},
"100": {
"value": "#D8E1FD",
"type": "color"
},
"200": {
"value": "#B1C3FC",
"type": "color"
},
"300": {
"value": "#7B99F4",
"type": "color"
},
"400": {
"value": "#4B72E7",
"type": "color"
},
"500": {
"value": "#2851CD",
"type": "color"
},
"600": {
"value": "#26449B",
"type": "color"
},
"700": {
"value": "#21346D",
"type": "color"
},
"800": {
"value": "#1A2547",
"type": "color"
},
"900": {
"value": "#12182B",
"type": "color"
}
}
}
}