What color is #509F8A?

#509F8A is a medium, muted teal-green. In RGB it is rgb(80, 159, 138), and in HSL hsl(164, 33%, 47%).

Is #509F8A accessible as text?

On white, #509F8A has a contrast ratio of 3.15:1 (fails WCAG AA for body text); on black it is 6.67:1 (passes). For text placed on #509F8A, use black for the best readability.

What is the closest Tailwind color to #509F8A?

The nearest Tailwind CSS token is teal-600 (#009689).

What colors go well with #509F8A?

#509F8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9F5065. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #509F8A below.

Is #509F8A good for buttons?

#509F8A works well for buttons and highlights, but use black text on #509F8A — white text only reaches 3.15:1, below the 4.5:1 needed for normal-size labels.

Is #509F8A the same as CSS cadetblue?

No — #509F8A is not the CSS named color cadetblue, but cadetblue (#5F9EA0) 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.

#509F8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #509F8A

Not just a swatch — here's how #509F8A works with other colors. Named schemes with #509F8A in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #509F8A Secondary #ADB4B7 Surface #F1F2F0 Support #7994A4 Anchor #2D3236

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

Japanese Sand Base · 5 colors

Base #509F8A Surface #EDEADC Highlight #F5F1E7 Secondary #B5B19F Ink #2A2723

Persian Green sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Coastal Morning Lead · 5 colors

Lead #509F8A Accent #A7C4BC Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3549

Persian Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Desert Clay Center · 5 colors

Center #509F8A Surface #DBD1A8 Secondary #A87F4C Accent #889C76 Anchor #3C2D1E

Persian Green holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #509F8A Secondary #A7C0B8 Support #989286 Ink #16140F

Persian Green 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 Persian Green carrying the quiet middle.

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Color Lab

How #509F8A 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 56/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

Low

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

Naturalness 46/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 58/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 70/100

High

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

Surface fit 41/100

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 #509F8A

For UI

For branding

For interior

For fashion

People also use #509F8A with

Medium Sea Green Air Force Blue Mauve Taupe Platinum Dark Slate Gray

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 5.9:1. Use

Subtle surface Use #DEEAE7 for cards and hover fills. Tint 80

Avoid beside #509A9F — 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 #509F8A 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: #509F8A;
  --color-base-rgb: 80 159 138;
  --color-base-oklch: oklch(64.6% 0.085 174.0);
  --color-50: #F5FAF9;
  --color-100: #E3F2EE;
  --color-200: #C9E4DC;
  --color-300: #A2CDC2;
  --color-400: #7EB4A6;
  --color-500: #5D9788;
  --color-600: #4C756A;
  --color-700: #3A554E;
  --color-800: #293834;
  --color-900: #1A2321;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  persian-green: {
    50: '#F5FAF9',
    100: '#E3F2EE',
    200: '#C9E4DC',
    300: '#A2CDC2',
    400: '#7EB4A6',
    500: '#5D9788',
    600: '#4C756A',
    700: '#3A554E',
    800: '#293834',
    900: '#1A2321',
  },
}

$base: #509F8A;
$base-ink: #141310;
$base-50: #F5FAF9;
$base-100: #E3F2EE;
$base-200: #C9E4DC;
$base-300: #A2CDC2;
$base-400: #7EB4A6;
$base-500: #5D9788;
$base-600: #4C756A;
$base-700: #3A554E;
$base-800: #293834;
$base-900: #1A2321;
$base-hover: #40806F;
$base-subtle: #CCE1DB;

{
    "color": {
        "base": {
            "value": "#509F8A",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5FAF9",
                "type": "color"
            },
            "100": {
                "value": "#E3F2EE",
                "type": "color"
            },
            "200": {
                "value": "#C9E4DC",
                "type": "color"
            },
            "300": {
                "value": "#A2CDC2",
                "type": "color"
            },
            "400": {
                "value": "#7EB4A6",
                "type": "color"
            },
            "500": {
                "value": "#5D9788",
                "type": "color"
            },
            "600": {
                "value": "#4C756A",
                "type": "color"
            },
            "700": {
                "value": "#3A554E",
                "type": "color"
            },
            "800": {
                "value": "#293834",
                "type": "color"
            },
            "900": {
                "value": "#1A2321",
                "type": "color"
            }
        }
    }
}

Palettes built on #509F8A

Color Lab

Pairs with #509F8A

UI roles & guardrails

In real applications

Scales

Every model

Export