What color is #559F8A?

#559F8A is a medium, muted teal-green. In RGB it is rgb(85, 159, 138), and in HSL hsl(163, 30%, 48%).

Is #559F8A accessible as text?

On white, #559F8A has a contrast ratio of 3.13:1 (fails WCAG AA for body text); on black it is 6.71:1 (passes). For text placed on #559F8A, use black for the best readability.

What is the closest Tailwind color to #559F8A?

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

What colors go well with #559F8A?

#559F8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9F566A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #559F8A below.

Is #559F8A good for buttons?

#559F8A works well for buttons and highlights, but use black text on #559F8A — white text only reaches 3.13:1, below the 4.5:1 needed for normal-size labels.

Is #559F8A the same as CSS cadetblue?

No — #559F8A 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.

#559F8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #559F8A

Not just a swatch — here's how #559F8A works with other colors. Named schemes with #559F8A in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #559F8A Secondary #ADB4B7 Surface #F1F2F0 Support #7994A4 Anchor #2D3236

Cadet Blue 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 #559F8A Surface #EDEADC Highlight #F5F1E7 Secondary #B5B19F Ink #2A2723

Cadet Blue 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 #559F8A Accent #A7C4BC Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3549

Cadet Blue 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 #559F8A Surface #DBD1A8 Secondary #A87F4C Accent #889C76 Anchor #3C2D1E

Cadet Blue 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 #559F8A Secondary #A8C0B8 Support #989286 Ink #16140F

Cadet 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 Cadet Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #559F8A 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 37/100

Cool

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

Softness 57/100

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 57/100

Moderate

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

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 31/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 68/100

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 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #559F8A

For UI

For branding

For interior

For fashion

People also use #559F8A with

Asparagus 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 #DFEAE7 for cards and hover fills. Tint 80

Avoid beside #569B9F — 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 #559F8A at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #559F8A;
  --color-base-rgb: 85 159 138;
  --color-base-oklch: oklch(64.8% 0.081 173.1);
  --color-50: #F5FAF8;
  --color-100: #E4F1ED;
  --color-200: #CAE2DB;
  --color-300: #A4CBC0;
  --color-400: #80B2A4;
  --color-500: #609586;
  --color-600: #4E7469;
  --color-700: #3B544D;
  --color-800: #293834;
  --color-900: #1B2320;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cadet-blue: {
    50: '#F5FAF8',
    100: '#E4F1ED',
    200: '#CAE2DB',
    300: '#A4CBC0',
    400: '#80B2A4',
    500: '#609586',
    600: '#4E7469',
    700: '#3B544D',
    800: '#293834',
    900: '#1B2320',
  },
}

$base: #559F8A;
$base-ink: #141310;
$base-50: #F5FAF8;
$base-100: #E4F1ED;
$base-200: #CAE2DB;
$base-300: #A4CBC0;
$base-400: #80B2A4;
$base-500: #609586;
$base-600: #4E7469;
$base-700: #3B544D;
$base-800: #293834;
$base-900: #1B2320;
$base-hover: #457F6F;
$base-subtle: #CEE0DB;

{
    "color": {
        "base": {
            "value": "#559F8A",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5FAF8",
                "type": "color"
            },
            "100": {
                "value": "#E4F1ED",
                "type": "color"
            },
            "200": {
                "value": "#CAE2DB",
                "type": "color"
            },
            "300": {
                "value": "#A4CBC0",
                "type": "color"
            },
            "400": {
                "value": "#80B2A4",
                "type": "color"
            },
            "500": {
                "value": "#609586",
                "type": "color"
            },
            "600": {
                "value": "#4E7469",
                "type": "color"
            },
            "700": {
                "value": "#3B544D",
                "type": "color"
            },
            "800": {
                "value": "#293834",
                "type": "color"
            },
            "900": {
                "value": "#1B2320",
                "type": "color"
            }
        }
    }
}

Palettes built on #559F8A

Color Lab

Pairs with #559F8A

UI roles & guardrails

In real applications

Scales

Every model

Export