What color is #175C39?

#175C39 is a dark teal-green. In RGB it is rgb(23, 92, 57), and in HSL hsl(150, 60%, 23%).

Is #175C39 accessible as text?

On white, #175C39 has a contrast ratio of 8.00:1 (passes WCAG AA for body text); on black it is 2.63:1 (fails). For text placed on #175C39, use white for the best readability.

What is the closest Tailwind color to #175C39?

The nearest Tailwind CSS token is emerald-800 (#006045).

What colors go well with #175C39?

#175C39 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5E173B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #175C39 below.

Is #175C39 good for buttons?

#175C39 works well for buttons and highlights, but use white text on #175C39 — black text only reaches 2.63:1, below the 4.5:1 needed for normal-size labels.

Is #175C39 the same as CSS darkgreen?

No — #175C39 is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#175C39 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #175C39

Not just a swatch — here's how #175C39 works with other colors. Named schemes with #175C39 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #175C39 Secondary #4A6C3D Accent #AC6C00 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.

Coastal Morning Lead · 5 colors

Lead #175C39 Accent #A8C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1A3648

Castleton Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #175C39 Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Castleton Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #175C39 Secondary #744E1A 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #175C39 Secondary #677B6E 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 #175C39 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 42/100

Neutral

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

Softness 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 57/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 85/100

Very high

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 60/100

Moderate

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

Luxury 63/100

High

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

Brand distinctiveness 24/100

Low

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

UI accent fit 74/100

High

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

Surface fit 30/100

Low

Usable as a tinted surface in measured doses.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #175C39

For UI

For branding

For interior

For fashion

People also use #175C39 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 8.0:1. Use

Subtle surface Use #C7E9D8 for cards and hover fills. Tint 80

Avoid beside #175E52 — 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 #175C39 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

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: #175C39;
  --color-base-rgb: 23 92 57;
  --color-base-oklch: oklch(42.3% 0.089 156.5);
  --color-50: #F2FCF7;
  --color-100: #DEF8EB;
  --color-200: #BEEFD6;
  --color-300: #91DEB8;
  --color-400: #67CB99;
  --color-500: #46AF7A;
  --color-600: #3C8661;
  --color-700: #2F6047;
  --color-800: #223F30;
  --color-900: #16271F;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F2FCF7',
    100: '#DEF8EB',
    200: '#BEEFD6',
    300: '#91DEB8',
    400: '#67CB99',
    500: '#46AF7A',
    600: '#3C8661',
    700: '#2F6047',
    800: '#223F30',
    900: '#16271F',
  },
}

$base: #175C39;
$base-ink: #FFFFFF;
$base-50: #F2FCF7;
$base-100: #DEF8EB;
$base-200: #BEEFD6;
$base-300: #91DEB8;
$base-400: #67CB99;
$base-500: #46AF7A;
$base-600: #3C8661;
$base-700: #2F6047;
$base-800: #223F30;
$base-900: #16271F;
$base-hover: #134B2F;
$base-subtle: #A9DFC4;

{
    "color": {
        "base": {
            "value": "#175C39",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCF7",
                "type": "color"
            },
            "100": {
                "value": "#DEF8EB",
                "type": "color"
            },
            "200": {
                "value": "#BEEFD6",
                "type": "color"
            },
            "300": {
                "value": "#91DEB8",
                "type": "color"
            },
            "400": {
                "value": "#67CB99",
                "type": "color"
            },
            "500": {
                "value": "#46AF7A",
                "type": "color"
            },
            "600": {
                "value": "#3C8661",
                "type": "color"
            },
            "700": {
                "value": "#2F6047",
                "type": "color"
            },
            "800": {
                "value": "#223F30",
                "type": "color"
            },
            "900": {
                "value": "#16271F",
                "type": "color"
            }
        }
    }
}