What color is #18ABC8?

#18ABC8 is a medium, vivid cyan. In RGB it is rgb(24, 171, 200), and in HSL hsl(190, 79%, 44%).

Is #18ABC8 accessible as text?

On white, #18ABC8 has a contrast ratio of 2.73:1 (fails WCAG AA for body text); on black it is 7.70:1 (passes). For text placed on #18ABC8, use black for the best readability.

What is the closest Tailwind color to #18ABC8?

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

What colors go well with #18ABC8?

#18ABC8 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #C93518. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #18ABC8 below.

Is #18ABC8 good for buttons?

#18ABC8 works well for buttons and highlights, but use black text on #18ABC8 — white text only reaches 2.73:1, below the 4.5:1 needed for normal-size labels.

Is #18ABC8 the same as CSS lightseagreen?

No — #18ABC8 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.

#18ABC8 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #18ABC8

Not just a swatch — here's how #18ABC8 works with other colors. Named schemes with #18ABC8 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #18ABC8 Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

Carolina 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 #18ABC8 Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 Anchor #2E3236

Carolina 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 #18ABC8 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #63D0EB

Carolina 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 Carolina Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #18ABC8 Secondary #A8CDD7 Support #969386 Ink #16140F

Carolina 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 Carolina Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #18ABC8 Anchor #372C1D Surface #EBE5D0 Accent #7E9D74 Secondary #393933

Carolina 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 #18ABC8 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 16/100

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

Airy and open — recedes, leaves the composition light.

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 39/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 46/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 65/100

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 68/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #18ABC8

For UI

For branding

For interior

For fashion

People also use #18ABC8 with

Medium Spring Green Sapphire Blue Mahogany 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 #D2EDF3 for cards and hover fills. Tint 80

Avoid beside #1870C9 — 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 #18ABC8 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: #18ABC8;
  --color-base-rgb: 24 171 200;
  --color-base-oklch: oklch(68.4% 0.118 216.2);
  --color-50: #F1FCFE;
  --color-100: #DAF6FC;
  --color-200: #B6ECF6;
  --color-300: #85DAEB;
  --color-400: #58C5DA;
  --color-500: #35A9C0;
  --color-600: #308292;
  --color-700: #285D67;
  --color-800: #1D3D43;
  --color-900: #142629;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  carolina-blue: {
    50: '#F1FCFE',
    100: '#DAF6FC',
    200: '#B6ECF6',
    300: '#85DAEB',
    400: '#58C5DA',
    500: '#35A9C0',
    600: '#308292',
    700: '#285D67',
    800: '#1D3D43',
    900: '#142629',
  },
}

$base: #18ABC8;
$base-ink: #141310;
$base-50: #F1FCFE;
$base-100: #DAF6FC;
$base-200: #B6ECF6;
$base-300: #85DAEB;
$base-400: #58C5DA;
$base-500: #35A9C0;
$base-600: #308292;
$base-700: #285D67;
$base-800: #1D3D43;
$base-900: #142629;
$base-hover: #1389A1;
$base-subtle: #BAE5EE;

{
    "color": {
        "base": {
            "value": "#18ABC8",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FCFE",
                "type": "color"
            },
            "100": {
                "value": "#DAF6FC",
                "type": "color"
            },
            "200": {
                "value": "#B6ECF6",
                "type": "color"
            },
            "300": {
                "value": "#85DAEB",
                "type": "color"
            },
            "400": {
                "value": "#58C5DA",
                "type": "color"
            },
            "500": {
                "value": "#35A9C0",
                "type": "color"
            },
            "600": {
                "value": "#308292",
                "type": "color"
            },
            "700": {
                "value": "#285D67",
                "type": "color"
            },
            "800": {
                "value": "#1D3D43",
                "type": "color"
            },
            "900": {
                "value": "#142629",
                "type": "color"
            }
        }
    }
}

Palettes built on #18ABC8

Color Lab

Pairs with #18ABC8

UI roles & guardrails

In real applications

Scales

Every model

Export