What color is #427C8A?

#427C8A is a medium cyan. In RGB it is rgb(66, 124, 138), and in HSL hsl(192, 35%, 40%).

Is #427C8A accessible as text?

On white, #427C8A has a contrast ratio of 4.69:1 (passes WCAG AA for body text); on black it is 4.48:1 (fails). For text placed on #427C8A, use white for the best readability.

What is the closest Tailwind color to #427C8A?

The nearest Tailwind CSS token is mist-500 (#67787C).

What colors go well with #427C8A?

#427C8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8A5142. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #427C8A below.

Is #427C8A good for buttons?

#427C8A works well for buttons and highlights, but use white text on #427C8A — black text only reaches 4.48:1, below the 4.5:1 needed for normal-size labels.

Is #427C8A the same as CSS teal?

No — #427C8A is not the CSS named color teal, but teal (#008080) is the closest CSS named color.

#427C8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #427C8A

Not just a swatch — here's how #427C8A works with other colors. Named schemes with #427C8A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #427C8A Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1E3549

Teal Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #427C8A Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 Anchor #2E3236

Teal Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Signal #427C8A Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #6C9FAD

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

Vintage Leather Lead · 5 colors

Lead #427C8A Secondary #705116 Surface #E3DCC0 Accent #395143 Anchor #56233E

Teal Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #427C8A Secondary #8DA0A5 Support #969386 Ink #16140F

Teal Blue 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 Teal Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #427C8A 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 32/100

Cool

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

Softness 51/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

Moderate

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

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 52/100

Moderate

A faint retro warmth without tipping into sepia.

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 78/100

High

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

Surface fit 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #427C8A

For UI

For branding

For interior

For fashion

People also use #427C8A with

Jungle Green Ultra Violet Chestnut Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

Body text Passes on white at 16px and above. Pass

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

Background Pair with white text at 4.7:1. Use

Subtle surface Use #D9E5E8 for cards and hover fills. Tint 80

Avoid beside #42648A — 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 #427C8A 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: #427C8A;
  --color-base-rgb: 66 124 138;
  --color-base-oklch: oklch(55.3% 0.064 215.3);
  --color-50: #F4F9FA;
  --color-100: #E3EFF2;
  --color-200: #C8DFE4;
  --color-300: #A1C5CE;
  --color-400: #7CAAB6;
  --color-500: #5C8D99;
  --color-600: #4B6E77;
  --color-700: #395056;
  --color-800: #283539;
  --color-900: #1A2123;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  teal-blue: {
    50: '#F4F9FA',
    100: '#E3EFF2',
    200: '#C8DFE4',
    300: '#A1C5CE',
    400: '#7CAAB6',
    500: '#5C8D99',
    600: '#4B6E77',
    700: '#395056',
    800: '#283539',
    900: '#1A2123',
  },
}

$base: #427C8A;
$base-ink: #FFFFFF;
$base-50: #F4F9FA;
$base-100: #E3EFF2;
$base-200: #C8DFE4;
$base-300: #A1C5CE;
$base-400: #7CAAB6;
$base-500: #5C8D99;
$base-600: #4B6E77;
$base-700: #395056;
$base-800: #283539;
$base-900: #1A2123;
$base-hover: #35636E;
$base-subtle: #C5D8DD;

{
    "color": {
        "base": {
            "value": "#427C8A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F9FA",
                "type": "color"
            },
            "100": {
                "value": "#E3EFF2",
                "type": "color"
            },
            "200": {
                "value": "#C8DFE4",
                "type": "color"
            },
            "300": {
                "value": "#A1C5CE",
                "type": "color"
            },
            "400": {
                "value": "#7CAAB6",
                "type": "color"
            },
            "500": {
                "value": "#5C8D99",
                "type": "color"
            },
            "600": {
                "value": "#4B6E77",
                "type": "color"
            },
            "700": {
                "value": "#395056",
                "type": "color"
            },
            "800": {
                "value": "#283539",
                "type": "color"
            },
            "900": {
                "value": "#1A2123",
                "type": "color"
            }
        }
    }
}

Palettes built on #427C8A

Color Lab

Pairs with #427C8A

UI roles & guardrails

In real applications

Scales

Every model

Export