What color is #558BA0?

#558BA0 is a medium, muted cyan-blue. In RGB it is rgb(85, 139, 160), and in HSL hsl(197, 31%, 48%).

Is #558BA0 accessible as text?

On white, #558BA0 has a contrast ratio of 3.76:1 (fails WCAG AA for body text); on black it is 5.59:1 (passes). For text placed on #558BA0, use black for the best readability.

What is the closest Tailwind color to #558BA0?

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

What colors go well with #558BA0?

#558BA0 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A06A54. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #558BA0 below.

Is #558BA0 good for buttons?

#558BA0 works well for buttons and highlights, but use black text on #558BA0 — white text only reaches 3.76:1, below the 4.5:1 needed for normal-size labels.

Is #558BA0 the same as CSS lightslategray?

No — #558BA0 is not the CSS named color lightslategray, but lightslategray (#778899) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#558BA0 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #558BA0

Not just a swatch — here's how #558BA0 works with other colors. Named schemes with #558BA0 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #558BA0 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1E344A

Air Force 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 #558BA0 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A5 Anchor #2E3236

Air Force 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 #558BA0 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #7FAFC3

Air Force 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 Air Force Blue.

Vintage Leather Lead · 5 colors

Lead #558BA0 Secondary #6F5116 Surface #E2DCC0 Accent #385244 Anchor #56233E

Air Force 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 #558BA0 Secondary #9EB1B8 Support #969386 Ink #16140F

Air Force 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 Air Force Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #558BA0 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 31/100

Cool

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

Softness 55/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 38/100

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 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 25/100

Low

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

UI accent fit 72/100

High

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

Surface fit 43/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #558BA0

For UI

For branding

For interior

For fashion

People also use #558BA0 with

Verdigris Tanzanite Mocha 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 4.9:1. Use

Subtle surface Use #DFE7EA for cards and hover fills. Tint 80

Avoid beside #5472A0 — 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 #558BA0 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: #558BA0;
  --color-base-rgb: 85 139 160;
  --color-base-oklch: oklch(60.7% 0.065 224.8);
  --color-50: #F5F8FA;
  --color-100: #E4EDF1;
  --color-200: #CADCE3;
  --color-300: #A4C0CC;
  --color-400: #7FA4B3;
  --color-500: #5F8696;
  --color-600: #4E6974;
  --color-700: #3B4D54;
  --color-800: #293438;
  --color-900: #1A2023;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  air-force-blue: {
    50: '#F5F8FA',
    100: '#E4EDF1',
    200: '#CADCE3',
    300: '#A4C0CC',
    400: '#7FA4B3',
    500: '#5F8696',
    600: '#4E6974',
    700: '#3B4D54',
    800: '#293438',
    900: '#1A2023',
  },
}

$base: #558BA0;
$base-ink: #141310;
$base-50: #F5F8FA;
$base-100: #E4EDF1;
$base-200: #CADCE3;
$base-300: #A4C0CC;
$base-400: #7FA4B3;
$base-500: #5F8696;
$base-600: #4E6974;
$base-700: #3B4D54;
$base-800: #293438;
$base-900: #1A2023;
$base-hover: #446F80;
$base-subtle: #CEDBE1;

{
    "color": {
        "base": {
            "value": "#558BA0",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E4EDF1",
                "type": "color"
            },
            "200": {
                "value": "#CADCE3",
                "type": "color"
            },
            "300": {
                "value": "#A4C0CC",
                "type": "color"
            },
            "400": {
                "value": "#7FA4B3",
                "type": "color"
            },
            "500": {
                "value": "#5F8696",
                "type": "color"
            },
            "600": {
                "value": "#4E6974",
                "type": "color"
            },
            "700": {
                "value": "#3B4D54",
                "type": "color"
            },
            "800": {
                "value": "#293438",
                "type": "color"
            },
            "900": {
                "value": "#1A2023",
                "type": "color"
            }
        }
    }
}

Palettes built on #558BA0

Color Lab

Pairs with #558BA0

UI roles & guardrails

In real applications

Scales

Every model

Export