What color is #166B40?

#166B40 is a dark teal-green. In RGB it is rgb(22, 107, 64), and in HSL hsl(150, 66%, 25%).

Is #166B40 accessible as text?

On white, #166B40 has a contrast ratio of 6.54:1 (passes WCAG AA for body text); on black it is 3.21:1 (fails). For text placed on #166B40, use white for the best readability.

What is the closest Tailwind color to #166B40?

The nearest Tailwind CSS token is green-800 (#016630).

What colors go well with #166B40?

#166B40 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #6A1640. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #166B40 below.

Is #166B40 good for buttons?

#166B40 works well for buttons and highlights, but use white text on #166B40 — black text only reaches 3.21:1, below the 4.5:1 needed for normal-size labels.

Is #166B40 the same as CSS darkolivegreen?

No — #166B40 is not the CSS named color darkolivegreen, but darkolivegreen (#556B2F) is the closest CSS named color.

#166B40 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #166B40

Not just a swatch — here's how #166B40 works with other colors. Named schemes with #166B40 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #166B40 Secondary #4A6C3D Accent #AC6C00 Surface #EEEAD6 Anchor #3C2F20

Hunter 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 #166B40 Accent #A8C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1A3648

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

Vintage Leather Lead · 5 colors

Lead #166B40 Secondary #744E1A Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

Hunter 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.

Berry & Cream Lead · 5 colors

Lead #166B40 Surface #F0E8D6 Anchor #612028 Accent #E5C4B9 Secondary #342B2C

Hunter 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 #166B40 Secondary #718979 Support #989286 Ink #17140F

Hunter 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 Hunter Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #166B40 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 40/100

Low

Middle-weight — neither delicate nor heavy.

Depth 53/100

Moderate

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

Naturalness 93/100

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 60/100

Moderate

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

Brand distinctiveness 28/100

Low

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

UI accent fit 89/100

Very high

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

Surface fit 23/100

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 #166B40

For UI

For branding

For interior

For fashion

People also use #166B40 with

Forest Green Feldgrau Tyrian Purple Platinum Hunter Green

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

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 6.5:1. Use

Subtle surface Use #C7EBD9 for cards and hover fills. Tint 80

Avoid beside #166A5C — 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 #166B40 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: #166B40;
  --color-base-rgb: 22 107 64;
  --color-base-oklch: oklch(46.8% 0.105 155.7);
  --color-50: #F2FDF7;
  --color-100: #DCF9EB;
  --color-200: #BBF1D6;
  --color-300: #8DE2B8;
  --color-400: #62D099;
  --color-500: #40B57A;
  --color-600: #388A61;
  --color-700: #2D6247;
  --color-800: #214030;
  --color-900: #16281F;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  hunter-green: {
    50: '#F2FDF7',
    100: '#DCF9EB',
    200: '#BBF1D6',
    300: '#8DE2B8',
    400: '#62D099',
    500: '#40B57A',
    600: '#388A61',
    700: '#2D6247',
    800: '#214030',
    900: '#16281F',
  },
}

$base: #166B40;
$base-ink: #FFFFFF;
$base-50: #F2FDF7;
$base-100: #DCF9EB;
$base-200: #BBF1D6;
$base-300: #8DE2B8;
$base-400: #62D099;
$base-500: #40B57A;
$base-600: #388A61;
$base-700: #2D6247;
$base-800: #214030;
$base-900: #16281F;
$base-hover: #115533;
$base-subtle: #A9E2C6;

{
    "color": {
        "base": {
            "value": "#166B40",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF7",
                "type": "color"
            },
            "100": {
                "value": "#DCF9EB",
                "type": "color"
            },
            "200": {
                "value": "#BBF1D6",
                "type": "color"
            },
            "300": {
                "value": "#8DE2B8",
                "type": "color"
            },
            "400": {
                "value": "#62D099",
                "type": "color"
            },
            "500": {
                "value": "#40B57A",
                "type": "color"
            },
            "600": {
                "value": "#388A61",
                "type": "color"
            },
            "700": {
                "value": "#2D6247",
                "type": "color"
            },
            "800": {
                "value": "#214030",
                "type": "color"
            },
            "900": {
                "value": "#16281F",
                "type": "color"
            }
        }
    }
}

Palettes built on #166B40

Color Lab

Pairs with #166B40

UI roles & guardrails

In real applications

Scales

Every model

Export