What color is #205359?

#205359 is a dark cyan. In RGB it is rgb(32, 83, 89), and in HSL hsl(186, 47%, 24%).

Is #205359 accessible as text?

On white, #205359 has a contrast ratio of 8.60:1 (passes WCAG AA for body text); on black it is 2.44:1 (fails). For text placed on #205359, use white for the best readability.

What is the closest Tailwind color to #205359?

The nearest Tailwind CSS token is cyan-900 (#104E64).

What colors go well with #205359?

#205359 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5A2620. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #205359 below.

Is #205359 good for buttons?

#205359 works well for buttons and highlights, but use white text on #205359 — black text only reaches 2.44:1, below the 4.5:1 needed for normal-size labels.

Is #205359 the same as CSS darkslategray?

No — #205359 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#205359 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #205359

Not just a swatch — here's how #205359 works with other colors. Named schemes with #205359 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #205359 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Dark Slate Gray 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 #205359 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Dark Slate Gray 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 #205359 Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #48747A

Dark Slate Gray is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Dark Slate Gray.

Vintage Leather Lead · 5 colors

Lead #205359 Secondary #715117 Surface #E3DCC0 Accent #395143 Anchor #56233F

Dark Slate Gray 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 #205359 Secondary #657577 Support #979286 Ink #16140F

Dark Slate Gray 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 Dark Slate Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #205359 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 40/100

Low

Middle-weight — neither delicate nor heavy.

Depth 57/100

Moderate

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

Naturalness 5/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 40/100

Low

A faint retro warmth without tipping into sepia.

Luxury 61/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 21/100

Low

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

UI accent fit 58/100

Moderate

Workable accent with care around contrast.

Surface fit 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #205359

For UI

For branding

For interior

For fashion

People also use #205359 with

Fern Green Prussian Blue Espresso Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

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 8.6:1. Use

Subtle surface Use #CBE3E5 for cards and hover fills. Tint 80

Avoid beside #20415A — 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 #205359 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: #205359;
  --color-base-rgb: 32 83 89;
  --color-base-oklch: oklch(41.1% 0.055 205.8);
  --color-50: #F3FBFB;
  --color-100: #E0F3F5;
  --color-200: #C3E5E9;
  --color-300: #99D0D6;
  --color-400: #72B8C0;
  --color-500: #519CA4;
  --color-600: #44787E;
  --color-700: #34575A;
  --color-800: #25393C;
  --color-900: #182425;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F3FBFB',
    100: '#E0F3F5',
    200: '#C3E5E9',
    300: '#99D0D6',
    400: '#72B8C0',
    500: '#519CA4',
    600: '#44787E',
    700: '#34575A',
    800: '#25393C',
    900: '#182425',
  },
}

$base: #205359;
$base-ink: #FFFFFF;
$base-50: #F3FBFB;
$base-100: #E0F3F5;
$base-200: #C3E5E9;
$base-300: #99D0D6;
$base-400: #72B8C0;
$base-500: #519CA4;
$base-600: #44787E;
$base-700: #34575A;
$base-800: #25393C;
$base-900: #182425;
$base-hover: #1A4348;
$base-subtle: #B0D5DA;

{
    "color": {
        "base": {
            "value": "#205359",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FBFB",
                "type": "color"
            },
            "100": {
                "value": "#E0F3F5",
                "type": "color"
            },
            "200": {
                "value": "#C3E5E9",
                "type": "color"
            },
            "300": {
                "value": "#99D0D6",
                "type": "color"
            },
            "400": {
                "value": "#72B8C0",
                "type": "color"
            },
            "500": {
                "value": "#519CA4",
                "type": "color"
            },
            "600": {
                "value": "#44787E",
                "type": "color"
            },
            "700": {
                "value": "#34575A",
                "type": "color"
            },
            "800": {
                "value": "#25393C",
                "type": "color"
            },
            "900": {
                "value": "#182425",
                "type": "color"
            }
        }
    }
}

Palettes built on #205359

Color Lab

Pairs with #205359

UI roles & guardrails

In real applications

Scales

Every model

Export