What color is #128E6D?

#128E6D is a dark, vivid teal-green. In RGB it is rgb(18, 142, 109), and in HSL hsl(164, 78%, 31%).

Is #128E6D accessible as text?

On white, #128E6D has a contrast ratio of 4.10:1 (fails WCAG AA for body text); on black it is 5.12:1 (passes). For text placed on #128E6D, use black for the best readability.

What is the closest Tailwind color to #128E6D?

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

What colors go well with #128E6D?

#128E6D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8D1132. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #128E6D below.

Is #128E6D good for buttons?

#128E6D works well for buttons and highlights, but use black text on #128E6D — white text only reaches 4.10:1, below the 4.5:1 needed for normal-size labels.

Is #128E6D the same as CSS seagreen?

No — #128E6D is not the CSS named color seagreen, but seagreen (#2E8B57) is the closest CSS named color.

#128E6D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #128E6D

Not just a swatch — here's how #128E6D works with other colors. Named schemes with #128E6D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #128E6D Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3549

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 #128E6D Secondary #734F19 Surface #E5DBC0 Accent #3B5141 Anchor #5B231F

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.

Modern Café Dominant · 5 colors

Dominant #128E6D Anchor #382B1E Surface #ECE4D0 Accent #849C6F Secondary #3A3833

Sea 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.

Berry & Cream Lead · 5 colors

Lead #128E6D Surface #F0E8D6 Anchor #612026 Accent #E5C4B9 Secondary #342B2B

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 #128E6D Secondary #8CAC9F Support #989286 Ink #16140F

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 #128E6D 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 34/100

Cool

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

Softness 47/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

Moderate

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

Naturalness 63/100

High

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

Vintage feel 59/100

Moderate

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

Luxury 50/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 30/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 93/100

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 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #128E6D

For UI

For branding

For interior

For fashion

People also use #128E6D with

Kelly Green Lapis Lazuli Burgundy 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 4.5:1. Use

Subtle surface Use #C8F0E5 for cards and hover fills. Tint 80

Avoid beside #11848D — 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 #128E6D 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: #128E6D;
  --color-base-rgb: 18 142 109;
  --color-base-oklch: oklch(57.6% 0.112 168.5);
  --color-50: #F1FEFA;
  --color-100: #DAFBF2;
  --color-200: #B6F6E5;
  --color-300: #85EACF;
  --color-400: #58DAB7;
  --color-500: #36BF9A;
  --color-600: #309178;
  --color-700: #286756;
  --color-800: #1E4339;
  --color-900: #142924;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  sea-green: {
    50: '#F1FEFA',
    100: '#DAFBF2',
    200: '#B6F6E5',
    300: '#85EACF',
    400: '#58DAB7',
    500: '#36BF9A',
    600: '#309178',
    700: '#286756',
    800: '#1E4339',
    900: '#142924',
  },
}

$base: #128E6D;
$base-ink: #141310;
$base-50: #F1FEFA;
$base-100: #DAFBF2;
$base-200: #B6F6E5;
$base-300: #85EACF;
$base-400: #58DAB7;
$base-500: #36BF9A;
$base-600: #309178;
$base-700: #286756;
$base-800: #1E4339;
$base-900: #142924;
$base-hover: #0E7156;
$base-subtle: #ABEAD9;

{
    "color": {
        "base": {
            "value": "#128E6D",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEFA",
                "type": "color"
            },
            "100": {
                "value": "#DAFBF2",
                "type": "color"
            },
            "200": {
                "value": "#B6F6E5",
                "type": "color"
            },
            "300": {
                "value": "#85EACF",
                "type": "color"
            },
            "400": {
                "value": "#58DAB7",
                "type": "color"
            },
            "500": {
                "value": "#36BF9A",
                "type": "color"
            },
            "600": {
                "value": "#309178",
                "type": "color"
            },
            "700": {
                "value": "#286756",
                "type": "color"
            },
            "800": {
                "value": "#1E4339",
                "type": "color"
            },
            "900": {
                "value": "#142924",
                "type": "color"
            }
        }
    }
}

Palettes built on #128E6D

Color Lab

Pairs with #128E6D

UI roles & guardrails

In real applications

Scales

Every model

Export