Nearest named color: Castleton Green
#285307
#285307
Nearest named
Castleton Green
Family
Green
Lightness
39.6%
Chroma
0.112
Hue angle
135.7°
Temperature
Neutral-leaning
Contrast on white
9.01:1 · AAA
Contrast on black
2.06:1 · Fail
Web-safe
#336600
CSS oklch()
40% 0.11 136

#285307 is a mid-toned, temperate 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.

Palettes built on #285307

Not just a swatch — here's how #285307 works with other colors. Named schemes with #285307 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Castleton Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Vintage Leather Lead · 5 colors

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.

Modern Café Dominant · 5 colors

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.

Berry & Cream Lead · 5 colors

Castleton Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

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.

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Color Lab

How #285307 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.

Warmth 52/100
Neutral
Balanced temperature — flexible, sits between warm and cool schemes.
Softness 34/100
Low
Middle-weight — neither delicate nor heavy.
Depth 61/100
High
Mid depth — usable as an accent or a muted ground.
Naturalness 100/100
Very high
Organic, earthy character — at home in wellness, food and craft brands.
Vintage feel 55/100
Moderate
A faint retro warmth without tipping into sepia.
Luxury 67/100
High
Restrained and premium — deep, quiet, high-end packaging and fashion.
Brand distinctiveness 30/100
Low
Recognisable but shares space with nearby hues.
UI accent fit 71/100
High
Strong interactive accent — visible and can carry a legible label.
Surface fit 25/100
Low
Too saturated or mid-toned for big areas — keep it to accents.
Print safety 75/100
High
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #285307

For UI
For branding
For interior
For fashion
People also use #285307 with

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA
Body text Passes on white at 16px and above. Pass
Large display Fine for headings 24px+ on white. Pass
Background Pair with white text at 9.0:1. Use
Subtle surface Use #D2EEBC for cards and hover fills. Tint 80
Avoid beside #0F5407 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #285307 at work across the surfaces designers actually ship.

Website / UI
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Dashboard
Revenue
$48.2k ▲ 12%
Brand
AVELINE
Studio
Poster
Nov 14 · 8PM
NIGHT
MARKET
Packaging
BLOOM
Botanical Wash
250 ml
Interior

Scales

ShadesBase darkened in 10% steps
TintsBase lifted toward white
TonesSaturation removed, lightness held
Monochromatic scaleDesign-system ready, 50–900

Every model

Export

:root {
  --color-base: #285307;
  --color-base-rgb: 40 83 7;
  --color-base-oklch: oklch(39.6% 0.112 135.7);
  --color-50: #F6FEF0;
  --color-100: #E8FDD8;
  --color-200: #D2F8B4;
  --color-300: #B0EE81;
  --color-400: #90DF53;
  --color-500: #71C430;
  --color-600: #5A952D;
  --color-700: #436925;
  --color-800: #2E451C;
  --color-900: #1D2A13;
  --color-on-base: #FFFFFF;
}