What color is #399166?

#399166 is a medium teal-green. In RGB it is rgb(57, 145, 102), and in HSL hsl(151, 44%, 40%).

Is #399166 accessible as text?

On white, #399166 has a contrast ratio of 3.88:1 (fails WCAG AA for body text); on black it is 5.42:1 (passes). For text placed on #399166, use black for the best readability.

What is the closest Tailwind color to #399166?

The nearest Tailwind CSS token is emerald-600 (#009966).

What colors go well with #399166?

#399166 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #933965. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #399166 below.

Is #399166 good for buttons?

#399166 works well for buttons and highlights, but use black text on #399166 — white text only reaches 3.88:1, below the 4.5:1 needed for normal-size labels.

Is #399166 the same as CSS seagreen?

No — #399166 is not the CSS named color seagreen, but seagreen (#2E8B57) is the closest CSS named color.

#399166 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #399166

Not just a swatch — here's how #399166 works with other colors. Named schemes with #399166 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #399166 Secondary #4A6C3D Accent #AC6D00 Surface #EEEAD6 Anchor #3C2F20

Sea 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 #399166 Accent #A8C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1A3648

Sea 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 #399166 Secondary #744E1A Surface #E5DBC0 Accent #3C5140 Anchor #5B2320

Sea 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 #399166 Surface #F0E8D6 Anchor #612028 Accent #E5C4B9 Secondary #342B2C

Sea 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 #399166 Secondary #95B0A0 Support #989286 Ink #17140F

Sea 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 Sea Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #399166 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 40/100

Neutral

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

Softness 49/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

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 62/100

High

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

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 29/100

Low

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

UI accent fit 90/100

Very high

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

Surface fit 28/100

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 #399166

For UI

For branding

For interior

For fashion

People also use #399166 with

Medium Sea Green Dark Cyan Cranberry Platinum Hunter Green

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.8:1. Use

Subtle surface Use #D7EAE1 for cards and hover fills. Tint 80

Avoid beside #399385 — 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 #399166 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: #399166;
  --color-base-rgb: 57 145 102;
  --color-base-oklch: oklch(59.2% 0.108 159.1);
  --color-50: #F4FBF7;
  --color-100: #E1F4EB;
  --color-200: #C4E8D7;
  --color-300: #9BD4B9;
  --color-400: #75BD9A;
  --color-500: #54A17C;
  --color-600: #467C62;
  --color-700: #365948;
  --color-800: #263B31;
  --color-900: #19251F;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  sea-green: {
    50: '#F4FBF7',
    100: '#E1F4EB',
    200: '#C4E8D7',
    300: '#9BD4B9',
    400: '#75BD9A',
    500: '#54A17C',
    600: '#467C62',
    700: '#365948',
    800: '#263B31',
    900: '#19251F',
  },
}

$base: #399166;
$base-ink: #141310;
$base-50: #F4FBF7;
$base-100: #E1F4EB;
$base-200: #C4E8D7;
$base-300: #9BD4B9;
$base-400: #75BD9A;
$base-500: #54A17C;
$base-600: #467C62;
$base-700: #365948;
$base-800: #263B31;
$base-900: #19251F;
$base-hover: #2E7653;
$base-subtle: #C2E0D2;

{
    "color": {
        "base": {
            "value": "#399166",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FBF7",
                "type": "color"
            },
            "100": {
                "value": "#E1F4EB",
                "type": "color"
            },
            "200": {
                "value": "#C4E8D7",
                "type": "color"
            },
            "300": {
                "value": "#9BD4B9",
                "type": "color"
            },
            "400": {
                "value": "#75BD9A",
                "type": "color"
            },
            "500": {
                "value": "#54A17C",
                "type": "color"
            },
            "600": {
                "value": "#467C62",
                "type": "color"
            },
            "700": {
                "value": "#365948",
                "type": "color"
            },
            "800": {
                "value": "#263B31",
                "type": "color"
            },
            "900": {
                "value": "#19251F",
                "type": "color"
            }
        }
    }
}

Palettes built on #399166

Color Lab

Pairs with #399166

UI roles & guardrails

In real applications

Scales

Every model

Export