What color is #175B2D?

#175B2D is a dark green. In RGB it is rgb(23, 91, 45), and in HSL hsl(139, 60%, 22%).

Is #175B2D accessible as text?

On white, #175B2D has a contrast ratio of 8.17:1 (passes WCAG AA for body text); on black it is 2.57:1 (fails). For text placed on #175B2D, use white for the best readability.

What is the closest Tailwind color to #175B2D?

The nearest Tailwind CSS token is green-900 (#0D542B).

What colors go well with #175B2D?

#175B2D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5A1644. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #175B2D below.

Is #175B2D good for buttons?

#175B2D works well for buttons and highlights, but use white text on #175B2D — black text only reaches 2.57:1, below the 4.5:1 needed for normal-size labels.

Is #175B2D the same as CSS darkgreen?

No — #175B2D is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#175B2D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #175B2D

Not just a swatch — here's how #175B2D works with other colors. Named schemes with #175B2D in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #175B2D Secondary #4B6C3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

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

Lead #175B2D Secondary #754E1B Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

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

Dominant #175B2D Anchor #382B1E Surface #EDE4D0 Accent #879B6D Secondary #3A3833

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

Lead #175B2D Surface #F0E8D6 Anchor #612029 Accent #E5C3BA Secondary #342B2C

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #175B2D Secondary #657A69 Support #989286 Ink #17140F

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.

Build a working theme in the generator →

Color Lab

How #175B2D 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 45/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 58/100

Moderate

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 57/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 64/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 27/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 75/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 27/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #175B2D

For UI

For branding

For interior

For fashion

People also use #175B2D with

Green Dark Slate Gray Tyrian Purple Platinum Hunter Green

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 8.2:1. Use

Subtle surface Use #C6E8D1 for cards and hover fills. Tint 80

Avoid beside #165A42 — 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 #175B2D at work across the surfaces designers actually ship.

Website / UI

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A working theme, generated in seconds.

Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #175B2D;
  --color-base-rgb: 23 91 45;
  --color-base-oklch: oklch(41.7% 0.101 150.0);
  --color-50: #F2FCF6;
  --color-100: #DEF8E6;
  --color-200: #BEEFCD;
  --color-300: #91DEA9;
  --color-400: #67CB87;
  --color-500: #46AF67;
  --color-600: #3C8653;
  --color-700: #2F603F;
  --color-800: #223F2B;
  --color-900: #16271C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F2FCF6',
    100: '#DEF8E6',
    200: '#BEEFCD',
    300: '#91DEA9',
    400: '#67CB87',
    500: '#46AF67',
    600: '#3C8653',
    700: '#2F603F',
    800: '#223F2B',
    900: '#16271C',
  },
}

$base: #175B2D;
$base-ink: #FFFFFF;
$base-50: #F2FCF6;
$base-100: #DEF8E6;
$base-200: #BEEFCD;
$base-300: #91DEA9;
$base-400: #67CB87;
$base-500: #46AF67;
$base-600: #3C8653;
$base-700: #2F603F;
$base-800: #223F2B;
$base-900: #16271C;
$base-hover: #124823;
$base-subtle: #A8DFB9;

{
    "color": {
        "base": {
            "value": "#175B2D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCF6",
                "type": "color"
            },
            "100": {
                "value": "#DEF8E6",
                "type": "color"
            },
            "200": {
                "value": "#BEEFCD",
                "type": "color"
            },
            "300": {
                "value": "#91DEA9",
                "type": "color"
            },
            "400": {
                "value": "#67CB87",
                "type": "color"
            },
            "500": {
                "value": "#46AF67",
                "type": "color"
            },
            "600": {
                "value": "#3C8653",
                "type": "color"
            },
            "700": {
                "value": "#2F603F",
                "type": "color"
            },
            "800": {
                "value": "#223F2B",
                "type": "color"
            },
            "900": {
                "value": "#16271C",
                "type": "color"
            }
        }
    }
}

Palettes built on #175B2D

Color Lab

Pairs with #175B2D

UI roles & guardrails

In real applications

Scales

Every model

Export