What color is #103543?

#103543 is a very dark cyan-blue. In RGB it is rgb(16, 53, 67), and in HSL hsl(196, 61%, 16%).

Is #103543 accessible as text?

On white, #103543 has a contrast ratio of 13.02:1 (passes WCAG AA for body text); on black it is 1.61:1 (fails). For text placed on #103543, use white for the best readability.

What is the closest Tailwind color to #103543?

The nearest Tailwind CSS token is cyan-950 (#053345).

What colors go well with #103543?

#103543 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #421D10. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #103543 below.

Is #103543 good for buttons?

#103543 works well for buttons and highlights, but use white text on #103543 — black text only reaches 1.61:1, below the 4.5:1 needed for normal-size labels.

Is #103543 the same as CSS darkslategray?

No — #103543 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#103543 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #103543

Not just a swatch — here's how #103543 works with other colors. Named schemes with #103543 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #103543 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1E344A

Gunmetal 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 #103543 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Gunmetal 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 #103543 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #355562

Gunmetal 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 Gunmetal Gray.

Vintage Leather Lead · 5 colors

Lead #103543 Secondary #6F5116 Surface #E2DCC0 Accent #385244 Anchor #56233D

Gunmetal 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 #103543 Secondary #4C575C Support #969386 Ink #16140F

Gunmetal 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 Gunmetal Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #103543 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 36/100

Cool

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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 31/100

Low

Workable accent with care around contrast.

Surface fit 50/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #103543

For UI

For branding

For interior

For fashion

People also use #103543 with

Hunter Green Navy Bistre 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 13.0:1. Use

Subtle surface Use #C1DDE7 for cards and hover fills. Tint 80

Avoid beside #102442 — 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 #103543 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: #103543;
  --color-base-rgb: 16 53 67;
  --color-base-oklch: oklch(31.0% 0.048 226.7);
  --color-50: #F2FAFC;
  --color-100: #DDF1F8;
  --color-200: #BDE2EF;
  --color-300: #90CADF;
  --color-400: #67B1CB;
  --color-500: #4593B0;
  --color-600: #3B7387;
  --color-700: #2F5360;
  --color-800: #22373F;
  --color-900: #162227;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F2FAFC',
    100: '#DDF1F8',
    200: '#BDE2EF',
    300: '#90CADF',
    400: '#67B1CB',
    500: '#4593B0',
    600: '#3B7387',
    700: '#2F5360',
    800: '#22373F',
    900: '#162227',
  },
}

$base: #103543;
$base-ink: #FFFFFF;
$base-50: #F2FAFC;
$base-100: #DDF1F8;
$base-200: #BDE2EF;
$base-300: #90CADF;
$base-400: #67B1CB;
$base-500: #4593B0;
$base-600: #3B7387;
$base-700: #2F5360;
$base-800: #22373F;
$base-900: #162227;
$base-hover: #0D2A35;
$base-subtle: #A1CDDD;

{
    "color": {
        "base": {
            "value": "#103543",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FAFC",
                "type": "color"
            },
            "100": {
                "value": "#DDF1F8",
                "type": "color"
            },
            "200": {
                "value": "#BDE2EF",
                "type": "color"
            },
            "300": {
                "value": "#90CADF",
                "type": "color"
            },
            "400": {
                "value": "#67B1CB",
                "type": "color"
            },
            "500": {
                "value": "#4593B0",
                "type": "color"
            },
            "600": {
                "value": "#3B7387",
                "type": "color"
            },
            "700": {
                "value": "#2F5360",
                "type": "color"
            },
            "800": {
                "value": "#22373F",
                "type": "color"
            },
            "900": {
                "value": "#162227",
                "type": "color"
            }
        }
    }
}