#1705BC is a deep, cool violet. On the Color Lab it reads clean and engineered, quietly premium. It sits well as a supporting tone.
Not just a swatch — here's how #1705BC works with other colors. Named schemes with #1705BC in its natural role, and a note on why the supporting colors balance it.
Medium Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.
Medium 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 Medium Blue.
Medium Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Medium Blue.
Medium Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Medium 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 Medium Blue carrying the quiet middle.
How #1705BC 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 #1705BC at work across the surfaces designers actually ship.
:root {
--color-base: #1705BC;
--color-base-rgb: 23 5 188;
--color-base-oklch: oklch(36.8% 0.243 267.6);
--color-50: #F2F0FE;
--color-100: #DCD8FD;
--color-200: #B8B1FC;
--color-300: #877AF5;
--color-400: #5A4AE8;
--color-500: #3727CE;
--color-600: #32269C;
--color-700: #29216E;
--color-800: #1E1A47;
--color-900: #14122B;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
medium-blue: {
50: '#F2F0FE',
100: '#DCD8FD',
200: '#B8B1FC',
300: '#877AF5',
400: '#5A4AE8',
500: '#3727CE',
600: '#32269C',
700: '#29216E',
800: '#1E1A47',
900: '#14122B',
},
}
$base: #1705BC; $base-ink: #FFFFFF; $base-50: #F2F0FE; $base-100: #DCD8FD; $base-200: #B8B1FC; $base-300: #877AF5; $base-400: #5A4AE8; $base-500: #3727CE; $base-600: #32269C; $base-700: #29216E; $base-800: #1E1A47; $base-900: #14122B; $base-hover: #130497; $base-subtle: #B4ADF2;
{
"color": {
"base": {
"value": "#1705BC",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F2F0FE",
"type": "color"
},
"100": {
"value": "#DCD8FD",
"type": "color"
},
"200": {
"value": "#B8B1FC",
"type": "color"
},
"300": {
"value": "#877AF5",
"type": "color"
},
"400": {
"value": "#5A4AE8",
"type": "color"
},
"500": {
"value": "#3727CE",
"type": "color"
},
"600": {
"value": "#32269C",
"type": "color"
},
"700": {
"value": "#29216E",
"type": "color"
},
"800": {
"value": "#1E1A47",
"type": "color"
},
"900": {
"value": "#14122B",
"type": "color"
}
}
}
}