What color is #018BB9?

#018BB9 is a dark, vivid cyan. In RGB it is rgb(1, 139, 185), and in HSL hsl(195, 99%, 36%).

Is #018BB9 accessible as text?

On white, #018BB9 has a contrast ratio of 3.89:1 (fails WCAG AA for body text); on black it is 5.39:1 (passes). For text placed on #018BB9, use black for the best readability.

What is the closest Tailwind color to #018BB9?

The nearest Tailwind CSS token is cyan-600 (#0092B8).

What colors go well with #018BB9?

#018BB9 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B72E01. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #018BB9 below.

Is #018BB9 good for buttons?

#018BB9 works well for buttons and highlights, but use black text on #018BB9 — white text only reaches 3.89:1, below the 4.5:1 needed for normal-size labels.

Is #018BB9 the same as CSS steelblue?

No — #018BB9 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#018BB9 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #018BB9

Not just a swatch — here's how #018BB9 works with other colors. Named schemes with #018BB9 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #018BB9 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

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

Tech Product Signal · 5 colors

Signal #018BB9 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #52B0DA

Bondi 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 Bondi Blue.

Vintage Leather Lead · 5 colors

Lead #018BB9 Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

Bondi 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.

Berry & Cream Lead · 5 colors

Lead #018BB9 Surface #EEE9D6 Anchor #592247 Accent #E4C2CC Secondary #322B30

Bondi Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #018BB9 Secondary #90AFC0 Support #969386 Ink #16140F

Bondi 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 Bondi Blue carrying the quiet middle.

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Color Lab

How #018BB9 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 14/100

Cool

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

Softness 48/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

Moderate

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

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 32/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 91/100

Very high

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

Surface fit 25/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #018BB9

For UI

For branding

For interior

For fashion

People also use #018BB9 with

Emerald Green Klein Blue Chestnut 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 Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.8:1. Use

Subtle surface Use #C7EAF6 for cards and hover fills. Tint 80

Avoid beside #014DB7 — 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 #018BB9 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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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: #018BB9;
  --color-base-rgb: 1 139 185;
  --color-base-oklch: oklch(59.7% 0.120 230.7);
  --color-50: #F0FBFE;
  --color-100: #D8F4FD;
  --color-200: #B1E9FC;
  --color-300: #78D8F7;
  --color-400: #47C2EB;
  --color-500: #23A6D2;
  --color-600: #23809F;
  --color-700: #1F5B6F;
  --color-800: #193C48;
  --color-900: #11252C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F0FBFE',
    100: '#D8F4FD',
    200: '#B1E9FC',
    300: '#78D8F7',
    400: '#47C2EB',
    500: '#23A6D2',
    600: '#23809F',
    700: '#1F5B6F',
    800: '#193C48',
    900: '#11252C',
  },
}

$base: #018BB9;
$base-ink: #141310;
$base-50: #F0FBFE;
$base-100: #D8F4FD;
$base-200: #B1E9FC;
$base-300: #78D8F7;
$base-400: #47C2EB;
$base-500: #23A6D2;
$base-600: #23809F;
$base-700: #1F5B6F;
$base-800: #193C48;
$base-900: #11252C;
$base-hover: #016E92;
$base-subtle: #A9E0F3;

{
    "color": {
        "base": {
            "value": "#018BB9",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FBFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F4FD",
                "type": "color"
            },
            "200": {
                "value": "#B1E9FC",
                "type": "color"
            },
            "300": {
                "value": "#78D8F7",
                "type": "color"
            },
            "400": {
                "value": "#47C2EB",
                "type": "color"
            },
            "500": {
                "value": "#23A6D2",
                "type": "color"
            },
            "600": {
                "value": "#23809F",
                "type": "color"
            },
            "700": {
                "value": "#1F5B6F",
                "type": "color"
            },
            "800": {
                "value": "#193C48",
                "type": "color"
            },
            "900": {
                "value": "#11252C",
                "type": "color"
            }
        }
    }
}

Palettes built on #018BB9

Color Lab

Pairs with #018BB9

UI roles & guardrails

In real applications

Scales

Every model

Export