What color is #309166?

#309166 is a dark teal-green. In RGB it is rgb(48, 145, 102), and in HSL hsl(153, 50%, 38%).

Is #309166 accessible as text?

On white, #309166 has a contrast ratio of 3.91:1 (fails WCAG AA for body text); on black it is 5.37:1 (passes). For text placed on #309166, use black for the best readability.

What is the closest Tailwind color to #309166?

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

What colors go well with #309166?

#309166 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #91305C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #309166 below.

Is #309166 good for buttons?

#309166 works well for buttons and highlights, but use black text on #309166 — white text only reaches 3.91:1, below the 4.5:1 needed for normal-size labels.

Is #309166 the same as CSS seagreen?

No — #309166 is not the CSS named color seagreen, but seagreen (#2E8B57) is the closest CSS named color.

#309166 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #309166

Not just a swatch — here's how #309166 works with other colors. Named schemes with #309166 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #309166 Secondary #4A6C3E 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 #309166 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 #309166 Secondary #744E1A Surface #E5DBC0 Accent #3B5141 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 #309166 Surface #F0E8D6 Anchor #612027 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 #309166 Secondary #93AF9F 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.

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Color Lab

How #309166 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 38/100

Neutral

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

Softness 48/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

Moderate

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

Naturalness 82/100

Very high

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

Vintage feel 60/100

High

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

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 30/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 91/100

Very high

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

Surface fit 27/100

Low

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

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #309166

For UI

For branding

For interior

For fashion

People also use #309166 with

Kelly Green Dark Cyan Cranberry Platinum Dark Slate Gray

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 4.7:1. Use

Subtle surface Use #D4EBE1 for cards and hover fills. Tint 80

Avoid beside #309186 — 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 #309166 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: #309166;
  --color-base-rgb: 48 145 102;
  --color-base-oklch: oklch(58.9% 0.112 160.4);
  --color-50: #F3FCF8;
  --color-100: #E0F5EC;
  --color-200: #C2EBD8;
  --color-300: #97D8BB;
  --color-400: #70C29D;
  --color-500: #4EA67F;
  --color-600: #428064;
  --color-700: #335C49;
  --color-800: #243C32;
  --color-900: #18251F;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  sea-green: {
    50: '#F3FCF8',
    100: '#E0F5EC',
    200: '#C2EBD8',
    300: '#97D8BB',
    400: '#70C29D',
    500: '#4EA67F',
    600: '#428064',
    700: '#335C49',
    800: '#243C32',
    900: '#18251F',
  },
}

$base: #309166;
$base-ink: #141310;
$base-50: #F3FCF8;
$base-100: #E0F5EC;
$base-200: #C2EBD8;
$base-300: #97D8BB;
$base-400: #70C29D;
$base-500: #4EA67F;
$base-600: #428064;
$base-700: #335C49;
$base-800: #243C32;
$base-900: #18251F;
$base-hover: #277451;
$base-subtle: #BEE2D1;

{
    "color": {
        "base": {
            "value": "#309166",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCF8",
                "type": "color"
            },
            "100": {
                "value": "#E0F5EC",
                "type": "color"
            },
            "200": {
                "value": "#C2EBD8",
                "type": "color"
            },
            "300": {
                "value": "#97D8BB",
                "type": "color"
            },
            "400": {
                "value": "#70C29D",
                "type": "color"
            },
            "500": {
                "value": "#4EA67F",
                "type": "color"
            },
            "600": {
                "value": "#428064",
                "type": "color"
            },
            "700": {
                "value": "#335C49",
                "type": "color"
            },
            "800": {
                "value": "#243C32",
                "type": "color"
            },
            "900": {
                "value": "#18251F",
                "type": "color"
            }
        }
    }
}

Palettes built on #309166

Color Lab

Pairs with #309166

UI roles & guardrails

In real applications

Scales

Every model

Export