#0D581D is a mid-toned, temperate teal-green. On the Color Lab it reads organic and grounded, quietly premium. It carries a legible label as a UI accent and sits well as a supporting tone.
Not just a swatch — here's how #0D581D works with other colors. Named schemes with #0D581D in its natural role, and a note on why the supporting colors balance it.
Castleton Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.
Castleton Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.
Castleton Green 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.
Castleton Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.
Castleton Green 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 Castleton Green carrying the quiet middle.
How #0D581D 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 #0D581D at work across the surfaces designers actually ship.
:root {
--color-base: #0D581D;
--color-base-rgb: 13 88 29;
--color-base-oklch: oklch(40.3% 0.115 146.0);
--color-50: #F1FEF4;
--color-100: #DBFBE2;
--color-200: #B8F4C5;
--color-300: #88E79D;
--color-400: #5CD676;
--color-500: #39BC55;
--color-600: #338F47;
--color-700: #2A6536;
--color-800: #1F4226;
--color-900: #152919;
--color-on-base: #FFFFFF;
}
// tailwind.config.js
colors: {
castleton-green: {
50: '#F1FEF4',
100: '#DBFBE2',
200: '#B8F4C5',
300: '#88E79D',
400: '#5CD676',
500: '#39BC55',
600: '#338F47',
700: '#2A6536',
800: '#1F4226',
900: '#152919',
},
}
$base: #0D581D; $base-ink: #FFFFFF; $base-50: #F1FEF4; $base-100: #DBFBE2; $base-200: #B8F4C5; $base-300: #88E79D; $base-400: #5CD676; $base-500: #39BC55; $base-600: #338F47; $base-700: #2A6536; $base-800: #1F4226; $base-900: #152919; $base-hover: #0B4718; $base-subtle: #9FE4AE;
{
"color": {
"base": {
"value": "#0D581D",
"type": "color"
},
"onBase": {
"value": "#FFFFFF",
"type": "color"
},
"scale": {
"50": {
"value": "#F1FEF4",
"type": "color"
},
"100": {
"value": "#DBFBE2",
"type": "color"
},
"200": {
"value": "#B8F4C5",
"type": "color"
},
"300": {
"value": "#88E79D",
"type": "color"
},
"400": {
"value": "#5CD676",
"type": "color"
},
"500": {
"value": "#39BC55",
"type": "color"
},
"600": {
"value": "#338F47",
"type": "color"
},
"700": {
"value": "#2A6536",
"type": "color"
},
"800": {
"value": "#1F4226",
"type": "color"
},
"900": {
"value": "#152919",
"type": "color"
}
}
}
}