What color is #01878E?

#01878E is a dark, vivid cyan. In RGB it is rgb(1, 135, 142), and in HSL hsl(183, 99%, 28%).

Is #01878E accessible as text?

On white, #01878E has a contrast ratio of 4.32:1 (fails WCAG AA for body text); on black it is 4.86:1 (passes). For text placed on #01878E, use black for the best readability.

What is the closest Tailwind color to #01878E?

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

What colors go well with #01878E?

#01878E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8E0801. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #01878E below.

Is #01878E good for buttons?

#01878E works well for buttons and highlights, but use black text on #01878E — white text only reaches 4.32:1, below the 4.5:1 needed for normal-size labels.

Is #01878E the same as CSS darkcyan?

No — #01878E is not the CSS named color darkcyan, but darkcyan (#008B8B) is the closest CSS named color.

#01878E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #01878E

Not just a swatch — here's how #01878E works with other colors. Named schemes with #01878E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #01878E Accent #A6C4BE Surface #DFDABE 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.

Tech Product Signal · 5 colors

Signal #01878E Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #50ABB1

Dark Cyan is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Dark Cyan.

Vintage Leather Lead · 5 colors

Lead #01878E Secondary #715017 Surface #E3DCC0 Accent #395143 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.

Berry & Cream Lead · 5 colors

Lead #01878E Surface #EFE8D6 Anchor #58224A Accent #E3C2CE 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 #01878E Secondary #89A7A9 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 #01878E 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 25/100

Cool

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

Softness 48/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

Moderate

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

Naturalness 10/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 58/100

Moderate

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

Luxury 50/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 26/100

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 30/100

Low

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

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #01878E

For UI

For branding

For interior

For fashion

People also use #01878E with

Medium Sea Green Egyptian 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 4.3:1. Use

Subtle surface Use #C0F2F4 for cards and hover fills. Tint 80

Avoid beside #01588E — 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 #01878E 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: #01878E;
  --color-base-rgb: 1 135 142;
  --color-base-oklch: oklch(56.7% 0.096 201.2);
  --color-50: #F0FEFE;
  --color-100: #D8FBFD;
  --color-200: #B1F8FC;
  --color-300: #78F1F7;
  --color-400: #47E3EB;
  --color-500: #23C9D2;
  --color-600: #23989F;
  --color-700: #1F6B6F;
  --color-800: #194648;
  --color-900: #112B2C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  dark-cyan: {
    50: '#F0FEFE',
    100: '#D8FBFD',
    200: '#B1F8FC',
    300: '#78F1F7',
    400: '#47E3EB',
    500: '#23C9D2',
    600: '#23989F',
    700: '#1F6B6F',
    800: '#194648',
    900: '#112B2C',
  },
}

$base: #01878E;
$base-ink: #141310;
$base-50: #F0FEFE;
$base-100: #D8FBFD;
$base-200: #B1F8FC;
$base-300: #78F1F7;
$base-400: #47E3EB;
$base-500: #23C9D2;
$base-600: #23989F;
$base-700: #1F6B6F;
$base-800: #194648;
$base-900: #112B2C;
$base-hover: #016C72;
$base-subtle: #9EEDF1;

{
    "color": {
        "base": {
            "value": "#01878E",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FBFD",
                "type": "color"
            },
            "200": {
                "value": "#B1F8FC",
                "type": "color"
            },
            "300": {
                "value": "#78F1F7",
                "type": "color"
            },
            "400": {
                "value": "#47E3EB",
                "type": "color"
            },
            "500": {
                "value": "#23C9D2",
                "type": "color"
            },
            "600": {
                "value": "#23989F",
                "type": "color"
            },
            "700": {
                "value": "#1F6B6F",
                "type": "color"
            },
            "800": {
                "value": "#194648",
                "type": "color"
            },
            "900": {
                "value": "#112B2C",
                "type": "color"
            }
        }
    }
}

Palettes built on #01878E

Color Lab

Pairs with #01878E

UI roles & guardrails

In real applications

Scales

Every model

Export