What color is #0383BA?

#0383BA is a dark, vivid cyan-blue. In RGB it is rgb(3, 131, 186), and in HSL hsl(198, 97%, 37%).

Is #0383BA accessible as text?

On white, #0383BA has a contrast ratio of 4.23:1 (fails WCAG AA for body text); on black it is 4.96:1 (passes). For text placed on #0383BA, use black for the best readability.

What is the closest Tailwind color to #0383BA?

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

What colors go well with #0383BA?

#0383BA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BA3A03. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0383BA below.

Is #0383BA good for buttons?

#0383BA works well for buttons and highlights, but use black text on #0383BA — white text only reaches 4.23:1, below the 4.5:1 needed for normal-size labels.

Is #0383BA the same as CSS steelblue?

No — #0383BA is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#0383BA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0383BA

Not just a swatch — here's how #0383BA works with other colors. Named schemes with #0383BA in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0383BA Accent #A6C4C0 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 #0383BA Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #50A8DB

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 #0383BA Secondary #7F4439 Surface #E2DDC0 Accent #385245 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 #0383BA Surface #EEE9D6 Anchor #592246 Accent #E4C2CC 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 #0383BA Secondary #8BA9BC 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 #0383BA 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 13/100

Cool

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

Softness 46/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

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 46/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 95/100

Very high

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

Surface fit 22/100

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 #0383BA

For UI

For branding

For interior

For fashion

People also use #0383BA with

Turquoise Medium Blue Sienna Platinum Charcoal

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

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 4.4:1. Use

Subtle surface Use #C8E8F5 for cards and hover fills. Tint 80

Avoid beside #0346BA — 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 #0383BA 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: #0383BA;
  --color-base-rgb: 3 131 186;
  --color-base-oklch: oklch(57.8% 0.126 237.0);
  --color-50: #F0FAFE;
  --color-100: #D8F2FD;
  --color-200: #B1E5FC;
  --color-300: #79D1F6;
  --color-400: #49B9E9;
  --color-500: #259DD0;
  --color-600: #25799D;
  --color-700: #20576F;
  --color-800: #193A48;
  --color-900: #11242C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F0FAFE',
    100: '#D8F2FD',
    200: '#B1E5FC',
    300: '#79D1F6',
    400: '#49B9E9',
    500: '#259DD0',
    600: '#25799D',
    700: '#20576F',
    800: '#193A48',
    900: '#11242C',
  },
}

$base: #0383BA;
$base-ink: #141310;
$base-50: #F0FAFE;
$base-100: #D8F2FD;
$base-200: #B1E5FC;
$base-300: #79D1F6;
$base-400: #49B9E9;
$base-500: #259DD0;
$base-600: #25799D;
$base-700: #20576F;
$base-800: #193A48;
$base-900: #11242C;
$base-hover: #026995;
$base-subtle: #ABDDF2;

{
    "color": {
        "base": {
            "value": "#0383BA",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FAFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F2FD",
                "type": "color"
            },
            "200": {
                "value": "#B1E5FC",
                "type": "color"
            },
            "300": {
                "value": "#79D1F6",
                "type": "color"
            },
            "400": {
                "value": "#49B9E9",
                "type": "color"
            },
            "500": {
                "value": "#259DD0",
                "type": "color"
            },
            "600": {
                "value": "#25799D",
                "type": "color"
            },
            "700": {
                "value": "#20576F",
                "type": "color"
            },
            "800": {
                "value": "#193A48",
                "type": "color"
            },
            "900": {
                "value": "#11242C",
                "type": "color"
            }
        }
    }
}

Palettes built on #0383BA

Color Lab

Pairs with #0383BA

UI roles & guardrails

In real applications

Scales

Every model

Export