What color is #128688?

#128688 is a dark, vivid cyan. In RGB it is rgb(18, 134, 136), and in HSL hsl(181, 77%, 30%).

Is #128688 accessible as text?

On white, #128688 has a contrast ratio of 4.38:1 (fails WCAG AA for body text); on black it is 4.79:1 (passes). For text placed on #128688, use black for the best readability.

What is the closest Tailwind color to #128688?

The nearest Tailwind CSS token is teal-600 (#009689).

What colors go well with #128688?

#128688 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #871412. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #128688 below.

Is #128688 good for buttons?

#128688 works well for buttons and highlights, but use black text on #128688 — white text only reaches 4.38:1, below the 4.5:1 needed for normal-size labels.

Is #128688 the same as CSS darkcyan?

No — #128688 is not the CSS named color darkcyan, but darkcyan (#008B8B) is the closest CSS named color.

#128688 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #128688

Not just a swatch — here's how #128688 works with other colors. Named schemes with #128688 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #128688 Accent #A6C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1D3549

Dark Cyan 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 #128688 Secondary #715017 Surface #E3DCC0 Accent #3A5142 Anchor #552340

Dark Cyan 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 #128688 Anchor #382C1E Surface #ECE4D0 Accent #809C72 Secondary #3A3933

Dark Cyan 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 #128688 Surface #EFE8D6 Anchor #57234A Accent #E5C4B7 Secondary #322B30

Dark Cyan sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #128688 Secondary #89A6A6 Support #979286 Ink #16140F

Dark Cyan 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 Dark Cyan carrying the quiet middle.

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Color Lab

How #128688 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 27/100

Cool

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

Softness 49/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

Moderate

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

Naturalness 14/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 61/100

High

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

Luxury 50/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 25/100

Low

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

UI accent fit 89/100

Very high

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

Surface fit 30/100

Low

Usable as a tinted surface in measured doses.

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #128688

For UI

For branding

For interior

For fashion

People also use #128688 with

Jade Green Classic Blue Falu Red Platinum Dark Slate Gray

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

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

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

Background Pair with white text at 4.4:1. Use

Subtle surface Use #C8EEEF for cards and hover fills. Tint 80

Avoid beside #125E87 — 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 #128688 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: #128688;
  --color-base-rgb: 18 134 136;
  --color-base-oklch: oklch(56.4% 0.093 196.8);
  --color-50: #F1FEFE;
  --color-100: #DAFBFB;
  --color-200: #B7F4F5;
  --color-300: #86E8E9;
  --color-400: #59D7D9;
  --color-500: #37BCBE;
  --color-600: #318F91;
  --color-700: #286566;
  --color-800: #1E4243;
  --color-900: #142929;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  dark-cyan: {
    50: '#F1FEFE',
    100: '#DAFBFB',
    200: '#B7F4F5',
    300: '#86E8E9',
    400: '#59D7D9',
    500: '#37BCBE',
    600: '#318F91',
    700: '#286566',
    800: '#1E4243',
    900: '#142929',
  },
}

$base: #128688;
$base-ink: #141310;
$base-50: #F1FEFE;
$base-100: #DAFBFB;
$base-200: #B7F4F5;
$base-300: #86E8E9;
$base-400: #59D7D9;
$base-500: #37BCBE;
$base-600: #318F91;
$base-700: #286566;
$base-800: #1E4243;
$base-900: #142929;
$base-hover: #0E6B6C;
$base-subtle: #AAE8E9;

{
    "color": {
        "base": {
            "value": "#128688",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEFE",
                "type": "color"
            },
            "100": {
                "value": "#DAFBFB",
                "type": "color"
            },
            "200": {
                "value": "#B7F4F5",
                "type": "color"
            },
            "300": {
                "value": "#86E8E9",
                "type": "color"
            },
            "400": {
                "value": "#59D7D9",
                "type": "color"
            },
            "500": {
                "value": "#37BCBE",
                "type": "color"
            },
            "600": {
                "value": "#318F91",
                "type": "color"
            },
            "700": {
                "value": "#286566",
                "type": "color"
            },
            "800": {
                "value": "#1E4243",
                "type": "color"
            },
            "900": {
                "value": "#142929",
                "type": "color"
            }
        }
    }
}

Palettes built on #128688

Color Lab

Pairs with #128688

UI roles & guardrails

In real applications

Scales

Every model

Export