What color is #558DB2?

#558DB2 is a medium cyan-blue. In RGB it is rgb(85, 141, 178), and in HSL hsl(204, 38%, 52%).

Is #558DB2 accessible as text?

On white, #558DB2 has a contrast ratio of 3.60:1 (fails WCAG AA for body text); on black it is 5.84:1 (passes). For text placed on #558DB2, use black for the best readability.

What is the closest Tailwind color to #558DB2?

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

What colors go well with #558DB2?

#558DB2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B37B56. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #558DB2 below.

Is #558DB2 good for buttons?

#558DB2 works well for buttons and highlights, but use black text on #558DB2 — white text only reaches 3.60:1, below the 4.5:1 needed for normal-size labels.

Is #558DB2 the same as CSS steelblue?

No — #558DB2 is not the CSS named color steelblue, but steelblue (#4682B4) is the closest CSS named color.

#558DB2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #558DB2

Not just a swatch — here's how #558DB2 works with other colors. Named schemes with #558DB2 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #558DB2 Accent #A5C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Ocean 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 #558DB2 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Ocean 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 #558DB2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #7FB2D4

Ocean 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 Ocean Blue.

Vintage Leather Lead · 5 colors

Lead #558DB2 Secondary #7F4439 Surface #E2DDC0 Accent #385245 Anchor #57233C

Ocean 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #558DB2 Secondary #A1B4C1 Support #969386 Ink #16140F

Ocean 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 Ocean Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #558DB2 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 26/100

Cool

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

Softness 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

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 52/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 44/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 22/100

Low

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

UI accent fit 76/100

High

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

Surface fit 39/100

Low

Usable as a tinted surface in measured doses.

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #558DB2

For UI

For branding

For interior

For fashion

People also use #558DB2 with

Medium Aquamarine Tanzanite 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 5.2:1. Use

Subtle surface Use #E0E8ED for cards and hover fills. Tint 80

Avoid beside #566FB3 — 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 #558DB2 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: #558DB2;
  --color-base-rgb: 85 141 178;
  --color-base-oklch: oklch(62.0% 0.082 238.9);
  --color-50: #F4F8FB;
  --color-100: #E2ECF3;
  --color-200: #C7D9E6;
  --color-300: #9FBDD0;
  --color-400: #7A9FB8;
  --color-500: #59819C;
  --color-600: #496679;
  --color-700: #384A57;
  --color-800: #27323A;
  --color-900: #192024;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  ocean-blue: {
    50: '#F4F8FB',
    100: '#E2ECF3',
    200: '#C7D9E6',
    300: '#9FBDD0',
    400: '#7A9FB8',
    500: '#59819C',
    600: '#496679',
    700: '#384A57',
    800: '#27323A',
    900: '#192024',
  },
}

$base: #558DB2;
$base-ink: #141310;
$base-50: #F4F8FB;
$base-100: #E2ECF3;
$base-200: #C7D9E6;
$base-300: #9FBDD0;
$base-400: #7A9FB8;
$base-500: #59819C;
$base-600: #496679;
$base-700: #384A57;
$base-800: #27323A;
$base-900: #192024;
$base-hover: #427292;
$base-subtle: #D0DCE5;

{
    "color": {
        "base": {
            "value": "#558DB2",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F8FB",
                "type": "color"
            },
            "100": {
                "value": "#E2ECF3",
                "type": "color"
            },
            "200": {
                "value": "#C7D9E6",
                "type": "color"
            },
            "300": {
                "value": "#9FBDD0",
                "type": "color"
            },
            "400": {
                "value": "#7A9FB8",
                "type": "color"
            },
            "500": {
                "value": "#59819C",
                "type": "color"
            },
            "600": {
                "value": "#496679",
                "type": "color"
            },
            "700": {
                "value": "#384A57",
                "type": "color"
            },
            "800": {
                "value": "#27323A",
                "type": "color"
            },
            "900": {
                "value": "#192024",
                "type": "color"
            }
        }
    }
}

Palettes built on #558DB2

Color Lab

Pairs with #558DB2

UI roles & guardrails

In real applications

Scales

Every model

Export