What color is #185153?

#185153 is a dark cyan. In RGB it is rgb(24, 81, 83), and in HSL hsl(182, 55%, 21%).

Is #185153 accessible as text?

On white, #185153 has a contrast ratio of 8.97:1 (passes WCAG AA for body text); on black it is 2.34:1 (fails). For text placed on #185153, use white for the best readability.

What is the closest Tailwind color to #185153?

The nearest Tailwind CSS token is teal-900 (#0B4F4A).

What colors go well with #185153?

#185153 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #531A18. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #185153 below.

Is #185153 good for buttons?

#185153 works well for buttons and highlights, but use white text on #185153 — black text only reaches 2.34:1, below the 4.5:1 needed for normal-size labels.

Is #185153 the same as CSS darkslategray?

No — #185153 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#185153 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #185153

Not just a swatch — here's how #185153 works with other colors. Named schemes with #185153 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #185153 Accent #A6C4BD Surface #E0DABE 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 #185153 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.

Vintage Leather Lead · 5 colors

Lead #185153 Secondary #715017 Surface #E3DCC0 Accent #3A5143 Anchor #552340

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.

Modern Café Dominant · 5 colors

Dominant #185153 Anchor #382C1D Surface #EBE4D0 Accent #809D72 Secondary #3A3933

Dark Slate Gray anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #185153 Secondary #617273 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.

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Color Lab

How #185153 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 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 58/100

Moderate

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

Naturalness 8/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 62/100

High

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

Brand distinctiveness 22/100

Low

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

UI accent fit 56/100

Moderate

Workable accent with care around contrast.

Surface fit 41/100

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 #185153

For UI

For branding

For interior

For fashion

People also use #185153 with

Fern Green Prussian Blue Rosewood 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 9.0:1. Use

Subtle surface Use #C7E6E7 for cards and hover fills. Tint 80

Avoid beside #183D53 — 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 #185153 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: #185153;
  --color-base-rgb: 24 81 83;
  --color-base-oklch: oklch(40.0% 0.058 198.4);
  --color-50: #F3FCFC;
  --color-100: #DFF6F6;
  --color-200: #C0EBED;
  --color-300: #94D9DB;
  --color-400: #6BC3C7;
  --color-500: #4AA8AB;
  --color-600: #3F8183;
  --color-700: #315C5E;
  --color-800: #233D3E;
  --color-900: #172626;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F3FCFC',
    100: '#DFF6F6',
    200: '#C0EBED',
    300: '#94D9DB',
    400: '#6BC3C7',
    500: '#4AA8AB',
    600: '#3F8183',
    700: '#315C5E',
    800: '#233D3E',
    900: '#172626',
  },
}

$base: #185153;
$base-ink: #FFFFFF;
$base-50: #F3FCFC;
$base-100: #DFF6F6;
$base-200: #C0EBED;
$base-300: #94D9DB;
$base-400: #6BC3C7;
$base-500: #4AA8AB;
$base-600: #3F8183;
$base-700: #315C5E;
$base-800: #233D3E;
$base-900: #172626;
$base-hover: #134142;
$base-subtle: #A9DADC;

{
    "color": {
        "base": {
            "value": "#185153",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCFC",
                "type": "color"
            },
            "100": {
                "value": "#DFF6F6",
                "type": "color"
            },
            "200": {
                "value": "#C0EBED",
                "type": "color"
            },
            "300": {
                "value": "#94D9DB",
                "type": "color"
            },
            "400": {
                "value": "#6BC3C7",
                "type": "color"
            },
            "500": {
                "value": "#4AA8AB",
                "type": "color"
            },
            "600": {
                "value": "#3F8183",
                "type": "color"
            },
            "700": {
                "value": "#315C5E",
                "type": "color"
            },
            "800": {
                "value": "#233D3E",
                "type": "color"
            },
            "900": {
                "value": "#172626",
                "type": "color"
            }
        }
    }
}

Palettes built on #185153

Color Lab

Pairs with #185153

UI roles & guardrails

In real applications

Scales

Every model

Export