What color is #557488?

#557488 is a medium, muted cyan-blue. In RGB it is rgb(85, 116, 136), and in HSL hsl(204, 23%, 43%).

Is #557488 accessible as text?

On white, #557488 has a contrast ratio of 4.95:1 (passes WCAG AA for body text); on black it is 4.24:1 (fails). For text placed on #557488, use white for the best readability.

What is the closest Tailwind color to #557488?

The nearest Tailwind CSS token is mist-500 (#67787C).

What colors go well with #557488?

#557488 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #876954. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #557488 below.

Is #557488 good for buttons?

#557488 works well for buttons and highlights, but use white text on #557488 — black text only reaches 4.24:1, below the 4.5:1 needed for normal-size labels.

Is #557488 the same as CSS dimgray?

No — #557488 is not the CSS named color dimgray, but dimgray (#696969) 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.

#557488 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #557488

Not just a swatch — here's how #557488 works with other colors. Named schemes with #557488 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #557488 Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Teal 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 #557488 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Teal 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 #557488 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #7B98AA

Teal 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 Teal Blue.

Vintage Leather Lead · 5 colors

Lead #557488 Secondary #7F4439 Surface #E2DDC0 Accent #385245 Anchor #57233C

Teal 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 #557488 Secondary #909BA2 Support #969386 Ink #16140F

Teal 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 Teal Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #557488 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 36/100

Cool

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

Softness 52/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 44/100

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 18/100

Very low

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

UI accent fit 70/100

High

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

Surface fit 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #557488

For UI

For branding

For interior

For fashion

People also use #557488 with

Cadet Blue Ultra Violet Raw Umber Platinum Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 5.0:1. Use

Subtle surface Use #DDE3E7 for cards and hover fills. Tint 80

Avoid beside #546287 — 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 #557488 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: #557488;
  --color-base-rgb: 85 116 136;
  --color-base-oklch: oklch(54.3% 0.048 237.1);
  --color-50: #F5F8F9;
  --color-100: #E6ECF0;
  --color-200: #CDD8E0;
  --color-300: #A9BBC6;
  --color-400: #869DAC;
  --color-500: #667E8F;
  --color-600: #53646F;
  --color-700: #3E4951;
  --color-800: #2B3236;
  --color-900: #1B1F22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  teal-blue: {
    50: '#F5F8F9',
    100: '#E6ECF0',
    200: '#CDD8E0',
    300: '#A9BBC6',
    400: '#869DAC',
    500: '#667E8F',
    600: '#53646F',
    700: '#3E4951',
    800: '#2B3236',
    900: '#1B1F22',
  },
}

$base: #557488;
$base-ink: #FFFFFF;
$base-50: #F5F8F9;
$base-100: #E6ECF0;
$base-200: #CDD8E0;
$base-300: #A9BBC6;
$base-400: #869DAC;
$base-500: #667E8F;
$base-600: #53646F;
$base-700: #3E4951;
$base-800: #2B3236;
$base-900: #1B1F22;
$base-hover: #445C6C;
$base-subtle: #CCD5DB;

{
    "color": {
        "base": {
            "value": "#557488",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8F9",
                "type": "color"
            },
            "100": {
                "value": "#E6ECF0",
                "type": "color"
            },
            "200": {
                "value": "#CDD8E0",
                "type": "color"
            },
            "300": {
                "value": "#A9BBC6",
                "type": "color"
            },
            "400": {
                "value": "#869DAC",
                "type": "color"
            },
            "500": {
                "value": "#667E8F",
                "type": "color"
            },
            "600": {
                "value": "#53646F",
                "type": "color"
            },
            "700": {
                "value": "#3E4951",
                "type": "color"
            },
            "800": {
                "value": "#2B3236",
                "type": "color"
            },
            "900": {
                "value": "#1B1F22",
                "type": "color"
            }
        }
    }
}

Palettes built on #557488

Color Lab

Pairs with #557488

UI roles & guardrails

In real applications

Scales

Every model

Export