What color is #517C8A?

#517C8A is a medium, muted cyan. In RGB it is rgb(81, 124, 138), and in HSL hsl(195, 26%, 43%).

Is #517C8A accessible as text?

On white, #517C8A has a contrast ratio of 4.57:1 (passes WCAG AA for body text); on black it is 4.60:1 (passes). For text placed on #517C8A, use black for the best readability.

What is the closest Tailwind color to #517C8A?

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

What colors go well with #517C8A?

#517C8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8A5F51. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #517C8A below.

Is #517C8A good for buttons?

#517C8A works for buttons; black text has the higher contrast, so prefer it for labels.

Is #517C8A the same as CSS slategray?

No — #517C8A 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.

#517C8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #517C8A

Not just a swatch — here's how #517C8A works with other colors. Named schemes with #517C8A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #517C8A Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E354A

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 #517C8A Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A5 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 #517C8A Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #78A0AD

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 #517C8A Secondary #705116 Surface #E2DCC0 Accent #385244 Anchor #56233E

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 #517C8A Secondary #93A1A6 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 #517C8A 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 35/100

Cool

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

Softness 53/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 42/100

Moderate

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 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 20/100

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 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #517C8A

For UI

For branding

For interior

For fashion

People also use #517C8A with

Cadet Blue Ultra Violet Raw Umber Platinum Dark Slate Gray

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 4.6:1. Use

Subtle surface Use #DCE5E7 for cards and hover fills. Tint 80

Avoid beside #51698A — 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 #517C8A 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: #517C8A;
  --color-base-rgb: 81 124 138;
  --color-base-oklch: oklch(56.0% 0.052 220.4);
  --color-50: #F5F8FA;
  --color-100: #E5EDF0;
  --color-200: #CCDBE1;
  --color-300: #A7C0C8;
  --color-400: #83A4AF;
  --color-500: #648691;
  --color-600: #516971;
  --color-700: #3D4D52;
  --color-800: #2A3437;
  --color-900: #1B2022;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  teal-blue: {
    50: '#F5F8FA',
    100: '#E5EDF0',
    200: '#CCDBE1',
    300: '#A7C0C8',
    400: '#83A4AF',
    500: '#648691',
    600: '#516971',
    700: '#3D4D52',
    800: '#2A3437',
    900: '#1B2022',
  },
}

$base: #517C8A;
$base-ink: #141310;
$base-50: #F5F8FA;
$base-100: #E5EDF0;
$base-200: #CCDBE1;
$base-300: #A7C0C8;
$base-400: #83A4AF;
$base-500: #648691;
$base-600: #516971;
$base-700: #3D4D52;
$base-800: #2A3437;
$base-900: #1B2022;
$base-hover: #41636F;
$base-subtle: #CBD8DC;

{
    "color": {
        "base": {
            "value": "#517C8A",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F8FA",
                "type": "color"
            },
            "100": {
                "value": "#E5EDF0",
                "type": "color"
            },
            "200": {
                "value": "#CCDBE1",
                "type": "color"
            },
            "300": {
                "value": "#A7C0C8",
                "type": "color"
            },
            "400": {
                "value": "#83A4AF",
                "type": "color"
            },
            "500": {
                "value": "#648691",
                "type": "color"
            },
            "600": {
                "value": "#516971",
                "type": "color"
            },
            "700": {
                "value": "#3D4D52",
                "type": "color"
            },
            "800": {
                "value": "#2A3437",
                "type": "color"
            },
            "900": {
                "value": "#1B2022",
                "type": "color"
            }
        }
    }
}

Palettes built on #517C8A

Color Lab

Pairs with #517C8A

UI roles & guardrails

In real applications

Scales

Every model

Export