What color is #3698BF?

#3698BF is a medium cyan-blue. In RGB it is rgb(54, 152, 191), and in HSL hsl(197, 56%, 48%).

Is #3698BF accessible as text?

On white, #3698BF has a contrast ratio of 3.28:1 (fails WCAG AA for body text); on black it is 6.40:1 (passes). For text placed on #3698BF, use black for the best readability.

What is the closest Tailwind color to #3698BF?

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

What colors go well with #3698BF?

#3698BF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BF5D36. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3698BF below.

Is #3698BF good for buttons?

#3698BF works well for buttons and highlights, but use black text on #3698BF — white text only reaches 3.28:1, below the 4.5:1 needed for normal-size labels.

Is #3698BF the same as CSS steelblue?

No — #3698BF is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#3698BF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3698BF

Not just a swatch — here's how #3698BF works with other colors. Named schemes with #3698BF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3698BF 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.

Nordic Calm Accent · 5 colors

Accent #3698BF Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 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 #3698BF Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #6BBDE1

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 #3698BF Secondary #A0BCCA 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 #3698BF Anchor #372C1D Surface #EBE5D0 Accent #7C9D75 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 #3698BF 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 53/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 36/100

Low

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

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 44/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 41/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 77/100

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 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3698BF

For UI

For branding

For interior

For fashion

People also use #3698BF with

Medium Aquamarine Cerulean Burnt Orange 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 #DAE9EF for cards and hover fills. Tint 80

Avoid beside #366ABF — 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 #3698BF 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: #3698BF;
  --color-base-rgb: 54 152 191;
  --color-base-oklch: oklch(64.0% 0.106 228.6);
  --color-50: #F3F9FC;
  --color-100: #DFF0F7;
  --color-200: #BFE0ED;
  --color-300: #93C7DC;
  --color-400: #6BADC7;
  --color-500: #4990AC;
  --color-600: #3E7084;
  --color-700: #31515E;
  --color-800: #23363E;
  --color-900: #172226;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F3F9FC',
    100: '#DFF0F7',
    200: '#BFE0ED',
    300: '#93C7DC',
    400: '#6BADC7',
    500: '#4990AC',
    600: '#3E7084',
    700: '#31515E',
    800: '#23363E',
    900: '#172226',
  },
}

$base: #3698BF;
$base-ink: #141310;
$base-50: #F3F9FC;
$base-100: #DFF0F7;
$base-200: #BFE0ED;
$base-300: #93C7DC;
$base-400: #6BADC7;
$base-500: #4990AC;
$base-600: #3E7084;
$base-700: #31515E;
$base-800: #23363E;
$base-900: #172226;
$base-hover: #2B7A99;
$base-subtle: #C6DFE8;

{
    "color": {
        "base": {
            "value": "#3698BF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FC",
                "type": "color"
            },
            "100": {
                "value": "#DFF0F7",
                "type": "color"
            },
            "200": {
                "value": "#BFE0ED",
                "type": "color"
            },
            "300": {
                "value": "#93C7DC",
                "type": "color"
            },
            "400": {
                "value": "#6BADC7",
                "type": "color"
            },
            "500": {
                "value": "#4990AC",
                "type": "color"
            },
            "600": {
                "value": "#3E7084",
                "type": "color"
            },
            "700": {
                "value": "#31515E",
                "type": "color"
            },
            "800": {
                "value": "#23363E",
                "type": "color"
            },
            "900": {
                "value": "#172226",
                "type": "color"
            }
        }
    }
}

Palettes built on #3698BF

Color Lab

Pairs with #3698BF

UI roles & guardrails

In real applications

Scales

Every model

Export