What color is #3184BC?

#3184BC is a medium cyan-blue. In RGB it is rgb(49, 132, 188), and in HSL hsl(204, 59%, 46%).

Is #3184BC accessible as text?

On white, #3184BC has a contrast ratio of 4.07:1 (fails WCAG AA for body text); on black it is 5.16:1 (passes). For text placed on #3184BC, use black for the best readability.

What is the closest Tailwind color to #3184BC?

The nearest Tailwind CSS token is sky-600 (#0084D1).

What colors go well with #3184BC?

#3184BC pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BB6730. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3184BC below.

Is #3184BC good for buttons?

#3184BC works well for buttons and highlights, but use black text on #3184BC — white text only reaches 4.07:1, below the 4.5:1 needed for normal-size labels.

Is #3184BC the same as CSS steelblue?

No — #3184BC is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#3184BC Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3184BC

Not just a swatch — here's how #3184BC works with other colors. Named schemes with #3184BC in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3184BC Accent #A5C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Steel 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 #3184BC Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #62A9DD

Steel 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 Steel Blue.

Vintage Leather Lead · 5 colors

Lead #3184BC Secondary #7F4438 Surface #E2DDC0 Accent #375245 Anchor #57233C

Steel 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 #3184BC Surface #EEE9D6 Anchor #5A2246 Accent #E4C2CB Secondary #322B30

Steel 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 #3184BC Secondary #92ABBF Support #969386 Ink #16140F

Steel 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 Steel Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #3184BC 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 47/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 31/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 92/100

Very 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 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3184BC

For UI

For branding

For interior

For fashion

People also use #3184BC with

Medium Aquamarine Egyptian Blue Copper 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 4.6:1. Use

Subtle surface Use #D8E6EF for cards and hover fills. Tint 80

Avoid beside #3055BB — 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 #3184BC 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: #3184BC;
  --color-base-rgb: 49 132 188;
  --color-base-oklch: oklch(58.9% 0.116 242.3);
  --color-50: #F2F8FC;
  --color-100: #DEEDF7;
  --color-200: #BEDBEE;
  --color-300: #92BFDE;
  --color-400: #68A3CA;
  --color-500: #4685AE;
  --color-600: #3C6886;
  --color-700: #304C5F;
  --color-800: #22333F;
  --color-900: #172027;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F2F8FC',
    100: '#DEEDF7',
    200: '#BEDBEE',
    300: '#92BFDE',
    400: '#68A3CA',
    500: '#4685AE',
    600: '#3C6886',
    700: '#304C5F',
    800: '#22333F',
    900: '#172027',
  },
}

$base: #3184BC;
$base-ink: #141310;
$base-50: #F2F8FC;
$base-100: #DEEDF7;
$base-200: #BEDBEE;
$base-300: #92BFDE;
$base-400: #68A3CA;
$base-500: #4685AE;
$base-600: #3C6886;
$base-700: #304C5F;
$base-800: #22333F;
$base-900: #172027;
$base-hover: #266995;
$base-subtle: #C3D9E8;

{
    "color": {
        "base": {
            "value": "#3184BC",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F8FC",
                "type": "color"
            },
            "100": {
                "value": "#DEEDF7",
                "type": "color"
            },
            "200": {
                "value": "#BEDBEE",
                "type": "color"
            },
            "300": {
                "value": "#92BFDE",
                "type": "color"
            },
            "400": {
                "value": "#68A3CA",
                "type": "color"
            },
            "500": {
                "value": "#4685AE",
                "type": "color"
            },
            "600": {
                "value": "#3C6886",
                "type": "color"
            },
            "700": {
                "value": "#304C5F",
                "type": "color"
            },
            "800": {
                "value": "#22333F",
                "type": "color"
            },
            "900": {
                "value": "#172027",
                "type": "color"
            }
        }
    }
}

Palettes built on #3184BC

Color Lab

Pairs with #3184BC

UI roles & guardrails

In real applications

Scales

Every model

Export