#5B577F is a mid-toned, cool purple. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #5B577F works with other colors. Named schemes with #5B577F in its natural role, and a note on why the supporting colors balance it.
Ultra Violet opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Ultra Violet keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Ultra Violet plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Ultra Violet 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.
Ultra Violet 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 Ultra Violet carrying the quiet middle.
How #5B577F 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 #5B577F at work across the surfaces designers actually ship.
:root {
--color-base: #5B577F;
--color-base-rgb: 91 87 127;
--color-base-oklch: oklch(47.7% 0.064 288.3);
--color-50: #F6F6F9;
--color-100: #E7E7EF;
--color-200: #D0CEDE;
--color-300: #AEABC4;
--color-400: #8C89A9;
--color-500: #6D6A8B;
--color-600: #57556D;
--color-700: #41404F;
--color-800: #2D2C35;
--color-900: #1D1C21;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
ultra-violet: {
50: '#F6F6F9',
100: '#E7E7EF',
200: '#D0CEDE',
300: '#AEABC4',
400: '#8C89A9',
500: '#6D6A8B',
600: '#57556D',
700: '#41404F',
800: '#2D2C35',
900: '#1D1C21',
},
}
$base: #5B577F; $base-ink: #FFFFFF; $base-50: #F6F6F9; $base-100: #E7E7EF; $base-200: #D0CEDE; $base-300: #AEABC4; $base-400: #8C89A9; $base-500: #6D6A8B; $base-600: #57556D; $base-700: #41404F; $base-800: #2D2C35; $base-900: #1D1C21; $base-hover: #494566; $base-subtle: #CECCD9;
{
"color": {
"base": {
"value": "#5B577F",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F6F6F9",
"type": "color"
},
"100": {
"value": "#E7E7EF",
"type": "color"
},
"200": {
"value": "#D0CEDE",
"type": "color"
},
"300": {
"value": "#AEABC4",
"type": "color"
},
"400": {
"value": "#8C89A9",
"type": "color"
},
"500": {
"value": "#6D6A8B",
"type": "color"
},
"600": {
"value": "#57556D",
"type": "color"
},
"700": {
"value": "#41404F",
"type": "color"
},
"800": {
"value": "#2D2C35",
"type": "color"
},
"900": {
"value": "#1D1C21",
"type": "color"
}
}
}
}