What color is #138FA0?

#138FA0 is a dark, vivid cyan. In RGB it is rgb(19, 143, 160), and in HSL hsl(187, 79%, 35%).

Is #138FA0 accessible as text?

On white, #138FA0 has a contrast ratio of 3.84:1 (fails WCAG AA for body text); on black it is 5.46:1 (passes). For text placed on #138FA0, use black for the best readability.

What is the closest Tailwind color to #138FA0?

The nearest Tailwind CSS token is cyan-600 (#0092B8).

What colors go well with #138FA0?

#138FA0 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A02313. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #138FA0 below.

Is #138FA0 good for buttons?

#138FA0 works well for buttons and highlights, but use black text on #138FA0 — white text only reaches 3.84:1, below the 4.5:1 needed for normal-size labels.

Is #138FA0 the same as CSS darkcyan?

No — #138FA0 is not the CSS named color darkcyan, but darkcyan (#008B8B) is the closest CSS named color.

#138FA0 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #138FA0

Not just a swatch — here's how #138FA0 works with other colors. Named schemes with #138FA0 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #138FA0 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 #138FA0 Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #57B3C3

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 #138FA0 Secondary #705117 Surface #E3DCC0 Accent #395143 Anchor #56233F

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 #138FA0 Surface #EFE8D6 Anchor #582249 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 #138FA0 Secondary #91B0B6 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 #138FA0 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 22/100

Cool

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

Softness 50/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 40/100

Moderate

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

Naturalness 5/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 27/100

Low

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

UI accent fit 87/100

Very high

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

Surface fit 31/100

Low

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #138FA0

For UI

For branding

For interior

For fashion

People also use #138FA0 with

Emerald Green Cobalt Blue Cherry Red 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 4.8:1. Use

Subtle surface Use #CBECF1 for cards and hover fills. Tint 80

Avoid beside #1360A0 — 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 #138FA0 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: #138FA0;
  --color-base-rgb: 19 143 160;
  --color-base-oklch: oklch(59.7% 0.100 210.0);
  --color-50: #F1FCFE;
  --color-100: #DAF8FC;
  --color-200: #B6EFF6;
  --color-300: #85DFEB;
  --color-400: #58CBDA;
  --color-500: #35B0C0;
  --color-600: #308792;
  --color-700: #286067;
  --color-800: #1D3F43;
  --color-900: #142729;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  dark-cyan: {
    50: '#F1FCFE',
    100: '#DAF8FC',
    200: '#B6EFF6',
    300: '#85DFEB',
    400: '#58CBDA',
    500: '#35B0C0',
    600: '#308792',
    700: '#286067',
    800: '#1D3F43',
    900: '#142729',
  },
}

$base: #138FA0;
$base-ink: #141310;
$base-50: #F1FCFE;
$base-100: #DAF8FC;
$base-200: #B6EFF6;
$base-300: #85DFEB;
$base-400: #58CBDA;
$base-500: #35B0C0;
$base-600: #308792;
$base-700: #286067;
$base-800: #1D3F43;
$base-900: #142729;
$base-hover: #0F7380;
$base-subtle: #AFE4EB;

{
    "color": {
        "base": {
            "value": "#138FA0",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FCFE",
                "type": "color"
            },
            "100": {
                "value": "#DAF8FC",
                "type": "color"
            },
            "200": {
                "value": "#B6EFF6",
                "type": "color"
            },
            "300": {
                "value": "#85DFEB",
                "type": "color"
            },
            "400": {
                "value": "#58CBDA",
                "type": "color"
            },
            "500": {
                "value": "#35B0C0",
                "type": "color"
            },
            "600": {
                "value": "#308792",
                "type": "color"
            },
            "700": {
                "value": "#286067",
                "type": "color"
            },
            "800": {
                "value": "#1D3F43",
                "type": "color"
            },
            "900": {
                "value": "#142729",
                "type": "color"
            }
        }
    }
}

Palettes built on #138FA0

Color Lab

Pairs with #138FA0

UI roles & guardrails

In real applications

Scales

Every model

Export