What color is #166559?

#166559 is a dark teal. In RGB it is rgb(22, 101, 89), and in HSL hsl(171, 64%, 24%).

Is #166559 accessible as text?

On white, #166559 has a contrast ratio of 6.91:1 (passes WCAG AA for body text); on black it is 3.04:1 (fails). For text placed on #166559, use white for the best readability.

What is the closest Tailwind color to #166559?

The nearest Tailwind CSS token is teal-800 (#005F5A).

What colors go well with #166559?

#166559 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #641622. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #166559 below.

Is #166559 good for buttons?

#166559 works well for buttons and highlights, but use white text on #166559 — black text only reaches 3.04:1, below the 4.5:1 needed for normal-size labels.

Is #166559 the same as CSS darkslategray?

No — #166559 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#166559 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #166559

Not just a swatch — here's how #166559 works with other colors. Named schemes with #166559 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #166559 Accent #A7C4BC Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Hunter 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 #166559 Secondary #AEB4B7 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

Hunter 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 #166559 Secondary #734F19 Surface #E4DCC0 Accent #3A5142 Anchor #5B231E

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.

Modern Café Dominant · 5 colors

Dominant #166559 Anchor #382B1E Surface #ECE4D0 Accent #839C70 Secondary #3A3833

Hunter 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #166559 Secondary #6F8580 Support #979286 Ink #16140F

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.

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Color Lab

How #166559 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 36/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 42/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 53/100

Moderate

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

Naturalness 32/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 59/100

Moderate

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

Brand distinctiveness 20/100

Low

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

UI accent fit 77/100

High

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

Surface fit 32/100

Low

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #166559

For UI

For branding

For interior

For fashion

People also use #166559 with

Forest Green Charcoal Rosewood Platinum Dark Slate Gray

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 6.9:1. Use

Subtle surface Use #C6EAE5 for cards and hover fills. Tint 80

Avoid beside #165664 — 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 #166559 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: #166559;
  --color-base-rgb: 22 101 89;
  --color-base-oklch: oklch(45.8% 0.076 180.1);
  --color-50: #F2FDFB;
  --color-100: #DDF8F4;
  --color-200: #BCF0E8;
  --color-300: #8EE1D5;
  --color-400: #64CEBE;
  --color-500: #42B3A2;
  --color-600: #39897D;
  --color-700: #2E6159;
  --color-800: #21403B;
  --color-900: #162725;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  hunter-green: {
    50: '#F2FDFB',
    100: '#DDF8F4',
    200: '#BCF0E8',
    300: '#8EE1D5',
    400: '#64CEBE',
    500: '#42B3A2',
    600: '#39897D',
    700: '#2E6159',
    800: '#21403B',
    900: '#162725',
  },
}

$base: #166559;
$base-ink: #FFFFFF;
$base-50: #F2FDFB;
$base-100: #DDF8F4;
$base-200: #BCF0E8;
$base-300: #8EE1D5;
$base-400: #64CEBE;
$base-500: #42B3A2;
$base-600: #39897D;
$base-700: #2E6159;
$base-800: #21403B;
$base-900: #162725;
$base-hover: #125047;
$base-subtle: #A9E1D9;

{
    "color": {
        "base": {
            "value": "#166559",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDFB",
                "type": "color"
            },
            "100": {
                "value": "#DDF8F4",
                "type": "color"
            },
            "200": {
                "value": "#BCF0E8",
                "type": "color"
            },
            "300": {
                "value": "#8EE1D5",
                "type": "color"
            },
            "400": {
                "value": "#64CEBE",
                "type": "color"
            },
            "500": {
                "value": "#42B3A2",
                "type": "color"
            },
            "600": {
                "value": "#39897D",
                "type": "color"
            },
            "700": {
                "value": "#2E6159",
                "type": "color"
            },
            "800": {
                "value": "#21403B",
                "type": "color"
            },
            "900": {
                "value": "#162725",
                "type": "color"
            }
        }
    }
}

Palettes built on #166559

Color Lab

Pairs with #166559

UI roles & guardrails

In real applications

Scales

Every model

Export