What color is #0B99D1?

#0B99D1 is a medium, vivid cyan-blue. In RGB it is rgb(11, 153, 209), and in HSL hsl(197, 90%, 43%).

Is #0B99D1 accessible as text?

On white, #0B99D1 has a contrast ratio of 3.24:1 (fails WCAG AA for body text); on black it is 6.49:1 (passes). For text placed on #0B99D1, use black for the best readability.

What is the closest Tailwind color to #0B99D1?

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

What colors go well with #0B99D1?

#0B99D1 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D0430B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0B99D1 below.

Is #0B99D1 good for buttons?

#0B99D1 works well for buttons and highlights, but use black text on #0B99D1 — white text only reaches 3.24:1, below the 4.5:1 needed for normal-size labels.

Is #0B99D1 the same as CSS steelblue?

No — #0B99D1 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#0B99D1 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0B99D1

Not just a swatch — here's how #0B99D1 works with other colors. Named schemes with #0B99D1 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0B99D1 Accent #A6C4C0 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.

Nordic Calm Accent · 5 colors

Accent #0B99D1 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Bondi 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 #0B99D1 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #5ABEF2

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #0B99D1 Secondary #9CBED2 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.

Modern Café Dominant · 5 colors

Dominant #0B99D1 Anchor #3C2925 Surface #EAE5D0 Accent #7B9E76 Secondary #393933

Bondi 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 #0B99D1 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 11/100

Cool

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

Softness 49/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 36/100

Low

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 39/100

Low

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 51/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 80/100

High

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

Surface fit 26/100

Low

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

Print safety 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #0B99D1

For UI

For branding

For interior

For fashion

People also use #0B99D1 with

Medium Spring Green Medium Blue Mahogany Platinum Charcoal

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 5.7:1. Use

Subtle surface Use #CFEAF5 for cards and hover fills. Tint 80

Avoid beside #0B57D0 — 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 #0B99D1 at work across the surfaces designers actually ship.

Website / UI

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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: #0B99D1;
  --color-base-rgb: 11 153 209;
  --color-base-oklch: oklch(64.4% 0.133 233.9);
  --color-50: #F0FAFE;
  --color-100: #D8F3FD;
  --color-200: #B2E6FB;
  --color-300: #7ED1F2;
  --color-400: #4FB9E3;
  --color-500: #2B9DCA;
  --color-600: #297999;
  --color-700: #23576C;
  --color-800: #1B3A46;
  --color-900: #12242B;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F0FAFE',
    100: '#D8F3FD',
    200: '#B2E6FB',
    300: '#7ED1F2',
    400: '#4FB9E3',
    500: '#2B9DCA',
    600: '#297999',
    700: '#23576C',
    800: '#1B3A46',
    900: '#12242B',
  },
}

$base: #0B99D1;
$base-ink: #141310;
$base-50: #F0FAFE;
$base-100: #D8F3FD;
$base-200: #B2E6FB;
$base-300: #7ED1F2;
$base-400: #4FB9E3;
$base-500: #2B9DCA;
$base-600: #297999;
$base-700: #23576C;
$base-800: #1B3A46;
$base-900: #12242B;
$base-hover: #097AA7;
$base-subtle: #B6E0F1;

{
    "color": {
        "base": {
            "value": "#0B99D1",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FAFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F3FD",
                "type": "color"
            },
            "200": {
                "value": "#B2E6FB",
                "type": "color"
            },
            "300": {
                "value": "#7ED1F2",
                "type": "color"
            },
            "400": {
                "value": "#4FB9E3",
                "type": "color"
            },
            "500": {
                "value": "#2B9DCA",
                "type": "color"
            },
            "600": {
                "value": "#297999",
                "type": "color"
            },
            "700": {
                "value": "#23576C",
                "type": "color"
            },
            "800": {
                "value": "#1B3A46",
                "type": "color"
            },
            "900": {
                "value": "#12242B",
                "type": "color"
            }
        }
    }
}

Palettes built on #0B99D1

Color Lab

Pairs with #0B99D1

UI roles & guardrails

In real applications

Scales

Every model

Export