#38639B is a mid-toned, cool indigo. 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 #38639B works with other colors. Named schemes with #38639B in its natural role, and a note on why the supporting colors balance it.
Lapis Lazuli opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Lapis Lazuli is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Lapis Lazuli.
Lapis Lazuli plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Lapis Lazuli sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Lapis Lazuli 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 Lapis Lazuli carrying the quiet middle.
How #38639B 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 #38639B at work across the surfaces designers actually ship.
:root {
--color-base: #38639B;
--color-base-rgb: 56 99 155;
--color-base-oklch: oklch(49.6% 0.102 255.7);
--color-50: #F3F7FB;
--color-100: #E0E9F5;
--color-200: #C3D4E9;
--color-300: #99B4D6;
--color-400: #7294C0;
--color-500: #5175A4;
--color-600: #445D7E;
--color-700: #34455A;
--color-800: #252F3C;
--color-900: #181E25;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
lapis-lazuli: {
50: '#F3F7FB',
100: '#E0E9F5',
200: '#C3D4E9',
300: '#99B4D6',
400: '#7294C0',
500: '#5175A4',
600: '#445D7E',
700: '#34455A',
800: '#252F3C',
900: '#181E25',
},
}
$base: #38639B; $base-ink: #FFFFFF; $base-50: #F3F7FB; $base-100: #E0E9F5; $base-200: #C3D4E9; $base-300: #99B4D6; $base-400: #7294C0; $base-500: #5175A4; $base-600: #445D7E; $base-700: #34455A; $base-800: #252F3C; $base-900: #181E25; $base-hover: #2C4E7B; $base-subtle: #C2D0E2;
{
"color": {
"base": {
"value": "#38639B",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F3F7FB",
"type": "color"
},
"100": {
"value": "#E0E9F5",
"type": "color"
},
"200": {
"value": "#C3D4E9",
"type": "color"
},
"300": {
"value": "#99B4D6",
"type": "color"
},
"400": {
"value": "#7294C0",
"type": "color"
},
"500": {
"value": "#5175A4",
"type": "color"
},
"600": {
"value": "#445D7E",
"type": "color"
},
"700": {
"value": "#34455A",
"type": "color"
},
"800": {
"value": "#252F3C",
"type": "color"
},
"900": {
"value": "#181E25",
"type": "color"
}
}
}
}