What color is #577F7E?

#577F7E is a medium, muted cyan. In RGB it is rgb(87, 127, 126), and in HSL hsl(179, 19%, 42%).

Is #577F7E accessible as text?

On white, #577F7E has a contrast ratio of 4.43:1 (fails WCAG AA for body text); on black it is 4.74:1 (passes). For text placed on #577F7E, use black for the best readability.

What is the closest Tailwind color to #577F7E?

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

What colors go well with #577F7E?

#577F7E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7F5757. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #577F7E below.

Is #577F7E good for buttons?

#577F7E works well for buttons and highlights, but use black text on #577F7E — white text only reaches 4.43:1, below the 4.5:1 needed for normal-size labels.

Is #577F7E the same as CSS slategray?

No — #577F7E is not the CSS named color slategray, but slategray (#708090) 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.

#577F7E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #577F7E

Not just a swatch — here's how #577F7E works with other colors. Named schemes with #577F7E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #577F7E Accent #A7C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Viridian 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 #577F7E Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A4 Anchor #2E3236

Viridian keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #577F7E Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #552340

Viridian plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Modern Café Dominant · 5 colors

Dominant #577F7E Anchor #382B1E Surface #ECE4D0 Accent #819C72 Secondary #3A3933

Viridian anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #577F7E Secondary #96A4A3 Support #979286 Ink #16140F

Viridian 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 Viridian carrying the quiet middle.

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Color Lab

How #577F7E 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 39/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 55/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 9/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 47/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 17/100

Very low

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

UI accent fit 67/100

High

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

Surface fit 45/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #577F7E

For UI

For branding

For interior

For fashion

People also use #577F7E with

Russian Green Dim Gray Mauve Taupe Platinum Dark Slate Gray

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 white text at 4.4:1. Use

Subtle surface Use #DDE5E5 for cards and hover fills. Tint 80

Avoid beside #57737F — 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 #577F7E 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: #577F7E;
  --color-base-rgb: 87 127 126;
  --color-base-oklch: oklch(56.7% 0.045 194.0);
  --color-50: #F6F9F9;
  --color-100: #E7EFEF;
  --color-200: #CEDEDE;
  --color-300: #ABC4C3;
  --color-400: #89A9A8;
  --color-500: #6A8B8B;
  --color-600: #556D6C;
  --color-700: #404F4F;
  --color-800: #2C3535;
  --color-900: #1C2121;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  viridian: {
    50: '#F6F9F9',
    100: '#E7EFEF',
    200: '#CEDEDE',
    300: '#ABC4C3',
    400: '#89A9A8',
    500: '#6A8B8B',
    600: '#556D6C',
    700: '#404F4F',
    800: '#2C3535',
    900: '#1C2121',
  },
}

$base: #577F7E;
$base-ink: #141310;
$base-50: #F6F9F9;
$base-100: #E7EFEF;
$base-200: #CEDEDE;
$base-300: #ABC4C3;
$base-400: #89A9A8;
$base-500: #6A8B8B;
$base-600: #556D6C;
$base-700: #404F4F;
$base-800: #2C3535;
$base-900: #1C2121;
$base-hover: #456665;
$base-subtle: #CCD9D9;

{
    "color": {
        "base": {
            "value": "#577F7E",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F9F9",
                "type": "color"
            },
            "100": {
                "value": "#E7EFEF",
                "type": "color"
            },
            "200": {
                "value": "#CEDEDE",
                "type": "color"
            },
            "300": {
                "value": "#ABC4C3",
                "type": "color"
            },
            "400": {
                "value": "#89A9A8",
                "type": "color"
            },
            "500": {
                "value": "#6A8B8B",
                "type": "color"
            },
            "600": {
                "value": "#556D6C",
                "type": "color"
            },
            "700": {
                "value": "#404F4F",
                "type": "color"
            },
            "800": {
                "value": "#2C3535",
                "type": "color"
            },
            "900": {
                "value": "#1C2121",
                "type": "color"
            }
        }
    }
}

Palettes built on #577F7E

Color Lab

Pairs with #577F7E

UI roles & guardrails

In real applications

Scales

Every model

Export