What color is #1BCBF3?

#1BCBF3 is a medium, vivid cyan. In RGB it is rgb(27, 203, 243), and in HSL hsl(191, 90%, 53%).

Is #1BCBF3 accessible as text?

On white, #1BCBF3 has a contrast ratio of 1.93:1 (fails WCAG AA for body text); on black it is 10.88:1 (passes). For text placed on #1BCBF3, use black for the best readability.

What is the closest Tailwind color to #1BCBF3?

The nearest Tailwind CSS token is cyan-400 (#00D3F2).

What colors go well with #1BCBF3?

#1BCBF3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #F3431B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1BCBF3 below.

Is #1BCBF3 good for buttons?

#1BCBF3 works well for buttons and highlights, but use black text on #1BCBF3 — white text only reaches 1.93:1, below the 4.5:1 needed for normal-size labels.

Is #1BCBF3 the same as CSS deepskyblue?

No — #1BCBF3 is not the CSS named color deepskyblue, but deepskyblue (#00BFFF) is the closest CSS named color.

#1BCBF3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1BCBF3

Not just a swatch — here's how #1BCBF3 works with other colors. Named schemes with #1BCBF3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1BCBF3 Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E354A

Lagoon 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 #1BCBF3 Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 Anchor #2E3236

Lagoon 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 #1BCBF3 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #70F1FF

Lagoon 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 Lagoon Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #1BCBF3 Secondary #C2EDFB Support #969386 Ink #16140F

Lagoon 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 Lagoon Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #1BCBF3 Anchor #372C1D Surface #EBE5D0 Accent #7D9D74 Secondary #393933

Lagoon 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 #1BCBF3 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 10/100

Cool

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

Softness 58/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 23/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 29/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 53/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 34/100

Low

Workable accent with care around contrast.

Surface fit 37/100

Low

Usable as a tinted surface in measured doses.

Print safety 63/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #1BCBF3

For UI

For branding

For interior

For fashion

People also use #1BCBF3 with

Medium Spring Green Neon Blue Cinnabar 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 9.6:1. Use

Subtle surface Use #D7F1F7 for cards and hover fills. Tint 80

Avoid beside #1B84F3 — 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 #1BCBF3 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: #1BCBF3;
  --color-base-rgb: 27 203 243;
  --color-base-oklch: oklch(78.0% 0.138 219.4);
  --color-50: #F0FCFE;
  --color-100: #D8F6FD;
  --color-200: #B2EDFB;
  --color-300: #7EDCF2;
  --color-400: #4FC8E3;
  --color-500: #2BADCA;
  --color-600: #298499;
  --color-700: #235E6C;
  --color-800: #1B3E46;
  --color-900: #12262B;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  lagoon-blue: {
    50: '#F0FCFE',
    100: '#D8F6FD',
    200: '#B2EDFB',
    300: '#7EDCF2',
    400: '#4FC8E3',
    500: '#2BADCA',
    600: '#298499',
    700: '#235E6C',
    800: '#1B3E46',
    900: '#12262B',
  },
}

$base: #1BCBF3;
$base-ink: #141310;
$base-50: #F0FCFE;
$base-100: #D8F6FD;
$base-200: #B2EDFB;
$base-300: #7EDCF2;
$base-400: #4FC8E3;
$base-500: #2BADCA;
$base-600: #298499;
$base-700: #235E6C;
$base-800: #1B3E46;
$base-900: #12262B;
$base-hover: #0BAACD;
$base-subtle: #C2EBF4;

{
    "color": {
        "base": {
            "value": "#1BCBF3",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FCFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F6FD",
                "type": "color"
            },
            "200": {
                "value": "#B2EDFB",
                "type": "color"
            },
            "300": {
                "value": "#7EDCF2",
                "type": "color"
            },
            "400": {
                "value": "#4FC8E3",
                "type": "color"
            },
            "500": {
                "value": "#2BADCA",
                "type": "color"
            },
            "600": {
                "value": "#298499",
                "type": "color"
            },
            "700": {
                "value": "#235E6C",
                "type": "color"
            },
            "800": {
                "value": "#1B3E46",
                "type": "color"
            },
            "900": {
                "value": "#12262B",
                "type": "color"
            }
        }
    }
}