#043169 is a deep, cool indigo. On the Color Lab it reads clean and engineered, quietly premium. It reproduces cleanly in print.
Not just a swatch — here's how #043169 works with other colors. Named schemes with #043169 in its natural role, and a note on why the supporting colors balance it.
Yale 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.
Yale 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 Yale Blue.
Yale Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Yale Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Yale 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 Yale Blue carrying the quiet middle.
How #043169 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 #043169 at work across the surfaces designers actually ship.
:root {
--color-base: #043169;
--color-base-rgb: 4 49 105;
--color-base-oklch: oklch(32.2% 0.109 257.0);
--color-50: #F0F7FE;
--color-100: #D8E9FD;
--color-200: #B1D2FC;
--color-300: #7CB2F4;
--color-400: #4C91E6;
--color-500: #2972CC;
--color-600: #275B9B;
--color-700: #22446D;
--color-800: #1A2E47;
--color-900: #121D2B;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
yale-blue: {
50: '#F0F7FE',
100: '#D8E9FD',
200: '#B1D2FC',
300: '#7CB2F4',
400: '#4C91E6',
500: '#2972CC',
600: '#275B9B',
700: '#22446D',
800: '#1A2E47',
900: '#121D2B',
},
}
$base: #043169; $base-ink: #FFFFFF; $base-50: #F0F7FE; $base-100: #D8E9FD; $base-200: #B1D2FC; $base-300: #7CB2F4; $base-400: #4C91E6; $base-500: #2972CC; $base-600: #275B9B; $base-700: #22446D; $base-800: #1A2E47; $base-900: #121D2B; $base-hover: #032753; $base-subtle: #98BEED;
{
"color": {
"base": {
"value": "#043169",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F0F7FE",
"type": "color"
},
"100": {
"value": "#D8E9FD",
"type": "color"
},
"200": {
"value": "#B1D2FC",
"type": "color"
},
"300": {
"value": "#7CB2F4",
"type": "color"
},
"400": {
"value": "#4C91E6",
"type": "color"
},
"500": {
"value": "#2972CC",
"type": "color"
},
"600": {
"value": "#275B9B",
"type": "color"
},
"700": {
"value": "#22446D",
"type": "color"
},
"800": {
"value": "#1A2E47",
"type": "color"
},
"900": {
"value": "#121D2B",
"type": "color"
}
}
}
}