#AC552A is a mid-toned, warm amber. On the Color Lab it reads organic and grounded, with a faded, vintage edge. It carries a legible label as a UI accent and reproduces cleanly in print.
Not just a swatch — here's how #AC552A works with other colors. Named schemes with #AC552A in its natural role, and a note on why the supporting colors balance it.
This palette keeps Sienna as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.
Sienna 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.
Sienna plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Sienna sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Sienna 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 Sienna carrying the quiet middle.
How #AC552A 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 #AC552A at work across the surfaces designers actually ship.
:root {
--color-base: #AC552A;
--color-base-rgb: 172 85 42;
--color-base-oklch: oklch(54.9% 0.127 44.9);
--color-50: #FCF6F2;
--color-100: #F8E6DD;
--color-200: #EFCEBD;
--color-300: #DFAA90;
--color-400: #CB8867;
--color-500: #B06845;
--color-600: #87543B;
--color-700: #603F2F;
--color-800: #3F2C22;
--color-900: #271C16;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
sienna: {
50: '#FCF6F2',
100: '#F8E6DD',
200: '#EFCEBD',
300: '#DFAA90',
400: '#CB8867',
500: '#B06845',
600: '#87543B',
700: '#603F2F',
800: '#3F2C22',
900: '#271C16',
},
}
$base: #AC552A; $base-ink: #FFFFFF; $base-50: #FCF6F2; $base-100: #F8E6DD; $base-200: #EFCEBD; $base-300: #DFAA90; $base-400: #CB8867; $base-500: #B06845; $base-600: #87543B; $base-700: #603F2F; $base-800: #3F2C22; $base-900: #271C16; $base-hover: #8A4421; $base-subtle: #E7CCBE;
{
"color": {
"base": {
"value": "#AC552A",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#FCF6F2",
"type": "color"
},
"100": {
"value": "#F8E6DD",
"type": "color"
},
"200": {
"value": "#EFCEBD",
"type": "color"
},
"300": {
"value": "#DFAA90",
"type": "color"
},
"400": {
"value": "#CB8867",
"type": "color"
},
"500": {
"value": "#B06845",
"type": "color"
},
"600": {
"value": "#87543B",
"type": "color"
},
"700": {
"value": "#603F2F",
"type": "color"
},
"800": {
"value": "#3F2C22",
"type": "color"
},
"900": {
"value": "#271C16",
"type": "color"
}
}
}
}