What color is #18656C?

#18656C is a dark cyan. In RGB it is rgb(24, 101, 108), and in HSL hsl(185, 64%, 26%).

Is #18656C accessible as text?

On white, #18656C has a contrast ratio of 6.74:1 (passes WCAG AA for body text); on black it is 3.12:1 (fails). For text placed on #18656C, use white for the best readability.

What is the closest Tailwind color to #18656C?

The nearest Tailwind CSS token is cyan-800 (#005F78).

What colors go well with #18656C?

#18656C pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #6D1F18. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #18656C below.

Is #18656C good for buttons?

#18656C works well for buttons and highlights, but use white text on #18656C — black text only reaches 3.12:1, below the 4.5:1 needed for normal-size labels.

Is #18656C the same as CSS darkslategray?

No — #18656C is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#18656C Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #18656C

Not just a swatch — here's how #18656C works with other colors. Named schemes with #18656C in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #18656C Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Feldgrau 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 #18656C Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Feldgrau 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 #18656C Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #4A878E

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

Vintage Leather Lead · 5 colors

Lead #18656C Secondary #715017 Surface #E3DCC0 Accent #395143 Anchor #55233F

Feldgrau 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 #18656C Secondary #718689 Support #979286 Ink #16140F

Feldgrau 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 Feldgrau carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #18656C 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 31/100

Cool

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

Softness 43/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 52/100

Moderate

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

Naturalness 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 58/100

Moderate

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

Brand distinctiveness 19/100

Very low

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

UI accent fit 77/100

High

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

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #18656C

For UI

For branding

For interior

For fashion

People also use #18656C with

Sea Green Yale Blue Falu Red Platinum Dark Slate Gray

UI roles & guardrails

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

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 6.7:1. Use

Subtle surface Use #C8E8EB for cards and hover fills. Tint 80

Avoid beside #18496D — 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 #18656C 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: #18656C;
  --color-base-rgb: 24 101 108;
  --color-base-oklch: oklch(46.5% 0.072 204.1);
  --color-50: #F2FCFD;
  --color-100: #DDF6F8;
  --color-200: #BCECF0;
  --color-300: #8EDAE1;
  --color-400: #64C5CE;
  --color-500: #42A9B3;
  --color-600: #398289;
  --color-700: #2E5D61;
  --color-800: #213D40;
  --color-900: #162627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  feldgrau: {
    50: '#F2FCFD',
    100: '#DDF6F8',
    200: '#BCECF0',
    300: '#8EDAE1',
    400: '#64C5CE',
    500: '#42A9B3',
    600: '#398289',
    700: '#2E5D61',
    800: '#213D40',
    900: '#162627',
  },
}

$base: #18656C;
$base-ink: #FFFFFF;
$base-50: #F2FCFD;
$base-100: #DDF6F8;
$base-200: #BCECF0;
$base-300: #8EDAE1;
$base-400: #64C5CE;
$base-500: #42A9B3;
$base-600: #398289;
$base-700: #2E5D61;
$base-800: #213D40;
$base-900: #162627;
$base-hover: #135157;
$base-subtle: #ABDDE2;

{
    "color": {
        "base": {
            "value": "#18656C",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCFD",
                "type": "color"
            },
            "100": {
                "value": "#DDF6F8",
                "type": "color"
            },
            "200": {
                "value": "#BCECF0",
                "type": "color"
            },
            "300": {
                "value": "#8EDAE1",
                "type": "color"
            },
            "400": {
                "value": "#64C5CE",
                "type": "color"
            },
            "500": {
                "value": "#42A9B3",
                "type": "color"
            },
            "600": {
                "value": "#398289",
                "type": "color"
            },
            "700": {
                "value": "#2E5D61",
                "type": "color"
            },
            "800": {
                "value": "#213D40",
                "type": "color"
            },
            "900": {
                "value": "#162627",
                "type": "color"
            }
        }
    }
}

Palettes built on #18656C

Color Lab

Pairs with #18656C

UI roles & guardrails

In real applications

Scales

Every model

Export