What color is #348AAF?

#348AAF is a medium cyan-blue. In RGB it is rgb(52, 138, 175), and in HSL hsl(198, 54%, 45%).

Is #348AAF accessible as text?

On white, #348AAF has a contrast ratio of 3.89:1 (fails WCAG AA for body text); on black it is 5.40:1 (passes). For text placed on #348AAF, use black for the best readability.

What is the closest Tailwind color to #348AAF?

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

What colors go well with #348AAF?

#348AAF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B15A35. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #348AAF below.

Is #348AAF good for buttons?

#348AAF works well for buttons and highlights, but use black text on #348AAF — white text only reaches 3.89:1, below the 4.5:1 needed for normal-size labels.

Is #348AAF the same as CSS steelblue?

No — #348AAF is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#348AAF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #348AAF

Not just a swatch — here's how #348AAF works with other colors. Named schemes with #348AAF in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #348AAF Accent #A6C4BF 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 #348AAF Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #66AED1

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 #348AAF Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

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 #348AAF Surface #EEE9D6 Anchor #592247 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 #348AAF Secondary #95AFBC 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 #348AAF 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 21/100

Cool

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

Softness 50/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 40/100

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 53/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 47/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 27/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 86/100

Very high

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

Surface fit 32/100

Low

Usable as a tinted surface in measured doses.

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #348AAF

For UI

For branding

For interior

For fashion

People also use #348AAF with

Medium Aquamarine Cerulean Sienna 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 4.8:1. Use

Subtle surface Use #D8E7EE for cards and hover fills. Tint 80

Avoid beside #3562B1 — 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 #348AAF at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

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: #348AAF;
  --color-base-rgb: 52 138 175;
  --color-base-oklch: oklch(59.8% 0.098 230.2);
  --color-50: #F3F9FC;
  --color-100: #DFEFF6;
  --color-200: #C0DFEC;
  --color-300: #95C6DA;
  --color-400: #6CABC6;
  --color-500: #4B8DAA;
  --color-600: #3F6E83;
  --color-700: #32505D;
  --color-800: #23363D;
  --color-900: #172226;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  steel-blue: {
    50: '#F3F9FC',
    100: '#DFEFF6',
    200: '#C0DFEC',
    300: '#95C6DA',
    400: '#6CABC6',
    500: '#4B8DAA',
    600: '#3F6E83',
    700: '#32505D',
    800: '#23363D',
    900: '#172226',
  },
}

$base: #348AAF;
$base-ink: #141310;
$base-50: #F3F9FC;
$base-100: #DFEFF6;
$base-200: #C0DFEC;
$base-300: #95C6DA;
$base-400: #6CABC6;
$base-500: #4B8DAA;
$base-600: #3F6E83;
$base-700: #32505D;
$base-800: #23363D;
$base-900: #172226;
$base-hover: #2A708D;
$base-subtle: #C4DCE6;

{
    "color": {
        "base": {
            "value": "#348AAF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FC",
                "type": "color"
            },
            "100": {
                "value": "#DFEFF6",
                "type": "color"
            },
            "200": {
                "value": "#C0DFEC",
                "type": "color"
            },
            "300": {
                "value": "#95C6DA",
                "type": "color"
            },
            "400": {
                "value": "#6CABC6",
                "type": "color"
            },
            "500": {
                "value": "#4B8DAA",
                "type": "color"
            },
            "600": {
                "value": "#3F6E83",
                "type": "color"
            },
            "700": {
                "value": "#32505D",
                "type": "color"
            },
            "800": {
                "value": "#23363D",
                "type": "color"
            },
            "900": {
                "value": "#172226",
                "type": "color"
            }
        }
    }
}

Palettes built on #348AAF

Color Lab

Pairs with #348AAF

UI roles & guardrails

In real applications

Scales

Every model

Export