What color is #03ACBF?

#03ACBF is a dark, vivid cyan. In RGB it is rgb(3, 172, 191), and in HSL hsl(186, 97%, 38%).

Is #03ACBF accessible as text?

On white, #03ACBF has a contrast ratio of 2.74:1 (fails WCAG AA for body text); on black it is 7.66:1 (passes). For text placed on #03ACBF, use black for the best readability.

What is the closest Tailwind color to #03ACBF?

The nearest Tailwind CSS token is cyan-500 (#00B8DB).

What colors go well with #03ACBF?

#03ACBF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BF1603. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #03ACBF below.

Is #03ACBF good for buttons?

#03ACBF works well for buttons and highlights, but use black text on #03ACBF — white text only reaches 2.74:1, below the 4.5:1 needed for normal-size labels.

Is #03ACBF the same as CSS lightseagreen?

No — #03ACBF is not the CSS named color lightseagreen, but lightseagreen (#20B2AA) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#03ACBF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #03ACBF

Not just a swatch — here's how #03ACBF works with other colors. Named schemes with #03ACBF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #03ACBF Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Light Sea Green 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 #03ACBF Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Light Sea Green 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 #03ACBF Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #5FD1E2

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #03ACBF Secondary #A7CCD3 Support #979286 Ink #16140F

Light Sea Green 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 Light Sea Green carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #03ACBF Anchor #372C1D Surface #EBE5D0 Accent #7F9D73 Secondary #3A3933

Light Sea Green 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 #03ACBF 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 18/100

Cool

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

Softness 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 32/100

Low

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

Naturalness 6/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 40/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 45/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 66/100

High

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

Surface fit 34/100

Low

Usable as a tinted surface in measured doses.

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #03ACBF

For UI

For branding

For interior

For fashion

People also use #03ACBF with

Medium Spring Green Cobalt Blue Firebrick 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 Only on dark surfaces. Avoid

Background Pair with #141310 text at 6.8:1. Use

Subtle surface Use #C9F1F5 for cards and hover fills. Tint 80

Avoid beside #036DBF — 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 #03ACBF 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: #03ACBF;
  --color-base-rgb: 3 172 191;
  --color-base-oklch: oklch(68.1% 0.117 208.7);
  --color-50: #F0FDFE;
  --color-100: #D8FAFD;
  --color-200: #B1F4FC;
  --color-300: #79EAF6;
  --color-400: #49D9E9;
  --color-500: #25BFD0;
  --color-600: #25919D;
  --color-700: #20676F;
  --color-800: #194348;
  --color-900: #11292C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  light-sea-green: {
    50: '#F0FDFE',
    100: '#D8FAFD',
    200: '#B1F4FC',
    300: '#79EAF6',
    400: '#49D9E9',
    500: '#25BFD0',
    600: '#25919D',
    700: '#20676F',
    800: '#194348',
    900: '#11292C',
  },
}

$base: #03ACBF;
$base-ink: #141310;
$base-50: #F0FDFE;
$base-100: #D8FAFD;
$base-200: #B1F4FC;
$base-300: #79EAF6;
$base-400: #49D9E9;
$base-500: #25BFD0;
$base-600: #25919D;
$base-700: #20676F;
$base-800: #194348;
$base-900: #11292C;
$base-hover: #028A99;
$base-subtle: #ADECF3;

{
    "color": {
        "base": {
            "value": "#03ACBF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FDFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FAFD",
                "type": "color"
            },
            "200": {
                "value": "#B1F4FC",
                "type": "color"
            },
            "300": {
                "value": "#79EAF6",
                "type": "color"
            },
            "400": {
                "value": "#49D9E9",
                "type": "color"
            },
            "500": {
                "value": "#25BFD0",
                "type": "color"
            },
            "600": {
                "value": "#25919D",
                "type": "color"
            },
            "700": {
                "value": "#20676F",
                "type": "color"
            },
            "800": {
                "value": "#194348",
                "type": "color"
            },
            "900": {
                "value": "#11292C",
                "type": "color"
            }
        }
    }
}

Palettes built on #03ACBF

Color Lab

Pairs with #03ACBF

UI roles & guardrails

In real applications

Scales

Every model

Export