What color is #559B87?

#559B87 is a medium, muted teal-green. In RGB it is rgb(85, 155, 135), and in HSL hsl(163, 29%, 47%).

Is #559B87 accessible as text?

On white, #559B87 has a contrast ratio of 3.27:1 (fails WCAG AA for body text); on black it is 6.42:1 (passes). For text placed on #559B87, use black for the best readability.

What is the closest Tailwind color to #559B87?

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

What colors go well with #559B87?

#559B87 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #9B5569. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #559B87 below.

Is #559B87 good for buttons?

#559B87 works well for buttons and highlights, but use black text on #559B87 — white text only reaches 3.27:1, below the 4.5:1 needed for normal-size labels.

Is #559B87 the same as CSS cadetblue?

No — #559B87 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.

#559B87 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #559B87

Not just a swatch — here's how #559B87 works with other colors. Named schemes with #559B87 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #559B87 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 #559B87 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 #559B87 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #559B87 Secondary #A6BDB5 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.

Tech Product Signal · 5 colors

Signal #559B87 Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #81BFAC

Cadet 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 Cadet Blue.

Build a working theme in the generator →

Color Lab

How #559B87 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 56/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

Low

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

Naturalness 45/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 56/100

Moderate

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

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 30/100

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 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 #559B87

For UI

For branding

For interior

For fashion

People also use #559B87 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 5.7:1. Use

Subtle surface Use #DEEAE6 for cards and hover fills. Tint 80

Avoid beside #55979B — 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 #559B87 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: #559B87;
  --color-base-rgb: 85 155 135;
  --color-base-oklch: oklch(63.7% 0.078 173.2);
  --color-50: #F5FAF8;
  --color-100: #E4F1ED;
  --color-200: #CAE2DB;
  --color-300: #A5CAC0;
  --color-400: #81B1A3;
  --color-500: #619485;
  --color-600: #4F7369;
  --color-700: #3C534C;
  --color-800: #293733;
  --color-900: #1B2320;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cadet-blue: {
    50: '#F5FAF8',
    100: '#E4F1ED',
    200: '#CAE2DB',
    300: '#A5CAC0',
    400: '#81B1A3',
    500: '#619485',
    600: '#4F7369',
    700: '#3C534C',
    800: '#293733',
    900: '#1B2320',
  },
}

$base: #559B87;
$base-ink: #141310;
$base-50: #F5FAF8;
$base-100: #E4F1ED;
$base-200: #CAE2DB;
$base-300: #A5CAC0;
$base-400: #81B1A3;
$base-500: #619485;
$base-600: #4F7369;
$base-700: #3C534C;
$base-800: #293733;
$base-900: #1B2320;
$base-hover: #447C6C;
$base-subtle: #CEDFDA;

{
    "color": {
        "base": {
            "value": "#559B87",
            "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": "#A5CAC0",
                "type": "color"
            },
            "400": {
                "value": "#81B1A3",
                "type": "color"
            },
            "500": {
                "value": "#619485",
                "type": "color"
            },
            "600": {
                "value": "#4F7369",
                "type": "color"
            },
            "700": {
                "value": "#3C534C",
                "type": "color"
            },
            "800": {
                "value": "#293733",
                "type": "color"
            },
            "900": {
                "value": "#1B2320",
                "type": "color"
            }
        }
    }
}

Palettes built on #559B87

Color Lab

Pairs with #559B87

UI roles & guardrails

In real applications

Scales

Every model

Export