#398EA7 is a mid-toned, cool blue. On the Color Lab it reads clean and engineered. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #398EA7 works with other colors. Named schemes with #398EA7 in its natural role, and a note on why the supporting colors balance it.
Bondi Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.
Bondi Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.
Bondi 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 Bondi Blue.
Bondi 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.
Bondi 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 Bondi Blue carrying the quiet middle.
How #398EA7 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 #398EA7 at work across the surfaces designers actually ship.
:root {
--color-base: #398EA7;
--color-base-rgb: 57 142 167;
--color-base-oklch: oklch(60.6% 0.089 220.6);
--color-50: #F3FAFB;
--color-100: #E0F0F5;
--color-200: #C2E1EA;
--color-300: #98C8D7;
--color-400: #70AFC2;
--color-500: #4F91A6;
--color-600: #42717F;
--color-700: #34525B;
--color-800: #25373C;
--color-900: #182225;
--color-on-base: #141310;
}
// tailwind.config.js
colors: {
bondi-blue: {
50: '#F3FAFB',
100: '#E0F0F5',
200: '#C2E1EA',
300: '#98C8D7',
400: '#70AFC2',
500: '#4F91A6',
600: '#42717F',
700: '#34525B',
800: '#25373C',
900: '#182225',
},
}
$base: #398EA7; $base-ink: #141310; $base-50: #F3FAFB; $base-100: #E0F0F5; $base-200: #C2E1EA; $base-300: #98C8D7; $base-400: #70AFC2; $base-500: #4F91A6; $base-600: #42717F; $base-700: #34525B; $base-800: #25373C; $base-900: #182225; $base-hover: #2E7186; $base-subtle: #C4DDE4;
{
"color": {
"base": {
"value": "#398EA7",
"type": "color"
},
"onBase": {
"value": "#141310",
"type": "color"
},
"scale": {
"50": {
"value": "#F3FAFB",
"type": "color"
},
"100": {
"value": "#E0F0F5",
"type": "color"
},
"200": {
"value": "#C2E1EA",
"type": "color"
},
"300": {
"value": "#98C8D7",
"type": "color"
},
"400": {
"value": "#70AFC2",
"type": "color"
},
"500": {
"value": "#4F91A6",
"type": "color"
},
"600": {
"value": "#42717F",
"type": "color"
},
"700": {
"value": "#34525B",
"type": "color"
},
"800": {
"value": "#25373C",
"type": "color"
},
"900": {
"value": "#182225",
"type": "color"
}
}
}
}