What color is #42CBBB?

#42CBBB is a medium teal. In RGB it is rgb(66, 203, 187), and in HSL hsl(173, 57%, 53%).

Is #42CBBB accessible as text?

On white, #42CBBB has a contrast ratio of 2.00:1 (fails WCAG AA for body text); on black it is 10.49:1 (passes). For text placed on #42CBBB, use black for the best readability.

What is the closest Tailwind color to #42CBBB?

The nearest Tailwind CSS token is teal-400 (#00D5BE).

What colors go well with #42CBBB?

#42CBBB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CB4353. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #42CBBB below.

Is #42CBBB good for buttons?

#42CBBB works well for buttons and highlights, but use black text on #42CBBB — white text only reaches 2.00:1, below the 4.5:1 needed for normal-size labels.

Is #42CBBB the same as CSS mediumturquoise?

No — #42CBBB is not the CSS named color mediumturquoise, but mediumturquoise (#48D1CC) is the closest CSS named color.

#42CBBB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #42CBBB

Not just a swatch — here's how #42CBBB works with other colors. Named schemes with #42CBBB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #42CBBB Accent #A7C4BC Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Robin Egg 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 #42CBBB Secondary #AEB4B7 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #42CBBB Secondary #C2E9E3 Support #979286 Ink #16140F

Robin Egg 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 Robin Egg Blue carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #42CBBB Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #80F0E1

Robin Egg 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 Robin Egg Blue.

Modern Café Dominant · 5 colors

Dominant #42CBBB Anchor #382B1E Surface #ECE4D0 Accent #829C71 Secondary #3A3833

Robin Egg Blue 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.

Build a working theme in the generator →

Color Lab

How #42CBBB 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 26/100

Cool

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

Softness 60/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 24/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 31/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 31/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 46/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 38/100

Low

Workable accent with care around contrast.

Surface fit 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #42CBBB

For UI

For branding

For interior

For fashion

People also use #42CBBB with

Emerald Green Ocean Blue Brick Red Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AAA

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

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 9.3:1. Use

Subtle surface Use #DDF1EF for cards and hover fills. Tint 80

Avoid beside #43AECB — 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 #42CBBB at work across the surfaces designers actually ship.

Website / UI

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Build faster.

A working theme, generated in seconds.

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: #42CBBB;
  --color-base-rgb: 66 203 187;
  --color-base-oklch: oklch(76.5% 0.118 183.9);
  --color-50: #F3FCFB;
  --color-100: #DEF7F4;
  --color-200: #BFEDE8;
  --color-300: #93DCD4;
  --color-400: #6AC8BD;
  --color-500: #48ADA1;
  --color-600: #3D847C;
  --color-700: #305E59;
  --color-800: #233E3B;
  --color-900: #172625;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  robin-egg-blue: {
    50: '#F3FCFB',
    100: '#DEF7F4',
    200: '#BFEDE8',
    300: '#93DCD4',
    400: '#6AC8BD',
    500: '#48ADA1',
    600: '#3D847C',
    700: '#305E59',
    800: '#233E3B',
    900: '#172625',
  },
}

$base: #42CBBB;
$base-ink: #141310;
$base-50: #F3FCFB;
$base-100: #DEF7F4;
$base-200: #BFEDE8;
$base-300: #93DCD4;
$base-400: #6AC8BD;
$base-500: #48ADA1;
$base-600: #3D847C;
$base-700: #305E59;
$base-800: #233E3B;
$base-900: #172625;
$base-hover: #2EAA9B;
$base-subtle: #CBEBE7;

{
    "color": {
        "base": {
            "value": "#42CBBB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCFB",
                "type": "color"
            },
            "100": {
                "value": "#DEF7F4",
                "type": "color"
            },
            "200": {
                "value": "#BFEDE8",
                "type": "color"
            },
            "300": {
                "value": "#93DCD4",
                "type": "color"
            },
            "400": {
                "value": "#6AC8BD",
                "type": "color"
            },
            "500": {
                "value": "#48ADA1",
                "type": "color"
            },
            "600": {
                "value": "#3D847C",
                "type": "color"
            },
            "700": {
                "value": "#305E59",
                "type": "color"
            },
            "800": {
                "value": "#233E3B",
                "type": "color"
            },
            "900": {
                "value": "#172625",
                "type": "color"
            }
        }
    }
}

Palettes built on #42CBBB

Color Lab

Pairs with #42CBBB

UI roles & guardrails

In real applications

Scales

Every model

Export