What color is #188366?

#188366 is a dark teal-green. In RGB it is rgb(24, 131, 102), and in HSL hsl(164, 69%, 30%).

Is #188366 accessible as text?

On white, #188366 has a contrast ratio of 4.69:1 (passes WCAG AA for body text); on black it is 4.48:1 (fails). For text placed on #188366, use white for the best readability.

What is the closest Tailwind color to #188366?

The nearest Tailwind CSS token is emerald-700 (#007A55).

What colors go well with #188366?

#188366 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #811834. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #188366 below.

Is #188366 good for buttons?

#188366 works well for buttons and highlights, but use white text on #188366 — black text only reaches 4.48:1, below the 4.5:1 needed for normal-size labels.

Is #188366 the same as CSS seagreen?

No — #188366 is not the CSS named color seagreen, but seagreen (#2E8B57) is the closest CSS named color.

#188366 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #188366

Not just a swatch — here's how #188366 works with other colors. Named schemes with #188366 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #188366 Accent #A7C4BC Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3549

Viridian 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 #188366 Secondary #734F19 Surface #E5DBC0 Accent #3B5141 Anchor #5B231F

Viridian 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 #188366 Anchor #382B1E Surface #ECE4D0 Accent #849C6F Secondary #3A3833

Viridian 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 #188366 Surface #F0E8D6 Anchor #612026 Accent #E5C4B9 Secondary #342B2B

Viridian 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 #188366 Secondary #85A196 Support #989286 Ink #16140F

Viridian 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 Viridian carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #188366 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 35/100

Cool

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

Softness 46/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 45/100

Moderate

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

Naturalness 61/100

High

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

Vintage feel 65/100

High

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

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 28/100

Low

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

UI accent fit 94/100

Very high

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

Surface fit 26/100

Low

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

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #188366

For UI

For branding

For interior

For fashion

People also use #188366 with

Shamrock Green Lapis Lazuli Burgundy 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 4.7:1. Use

Subtle surface Use #CAEDE4 for cards and hover fills. Tint 80

Avoid beside #187A81 — 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 #188366 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

Every model

Export

:root {
  --color-base: #188366;
  --color-base-rgb: 24 131 102;
  --color-base-oklch: oklch(54.5% 0.102 169.2);
  --color-50: #F2FDFA;
  --color-100: #DCF9F2;
  --color-200: #BAF2E3;
  --color-300: #8BE4CC;
  --color-400: #60D2B4;
  --color-500: #3EB797;
  --color-600: #368C75;
  --color-700: #2C6354;
  --color-800: #204138;
  --color-900: #152823;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  viridian: {
    50: '#F2FDFA',
    100: '#DCF9F2',
    200: '#BAF2E3',
    300: '#8BE4CC',
    400: '#60D2B4',
    500: '#3EB797',
    600: '#368C75',
    700: '#2C6354',
    800: '#204138',
    900: '#152823',
  },
}

$base: #188366;
$base-ink: #FFFFFF;
$base-50: #F2FDFA;
$base-100: #DCF9F2;
$base-200: #BAF2E3;
$base-300: #8BE4CC;
$base-400: #60D2B4;
$base-500: #3EB797;
$base-600: #368C75;
$base-700: #2C6354;
$base-800: #204138;
$base-900: #152823;
$base-hover: #136751;
$base-subtle: #ADE6D7;

{
    "color": {
        "base": {
            "value": "#188366",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDFA",
                "type": "color"
            },
            "100": {
                "value": "#DCF9F2",
                "type": "color"
            },
            "200": {
                "value": "#BAF2E3",
                "type": "color"
            },
            "300": {
                "value": "#8BE4CC",
                "type": "color"
            },
            "400": {
                "value": "#60D2B4",
                "type": "color"
            },
            "500": {
                "value": "#3EB797",
                "type": "color"
            },
            "600": {
                "value": "#368C75",
                "type": "color"
            },
            "700": {
                "value": "#2C6354",
                "type": "color"
            },
            "800": {
                "value": "#204138",
                "type": "color"
            },
            "900": {
                "value": "#152823",
                "type": "color"
            }
        }
    }
}

Palettes built on #188366

Color Lab

Pairs with #188366

UI roles & guardrails

In real applications

Scales

Every model

Export