What color is #1C4060?

#1C4060 is a dark blue. In RGB it is rgb(28, 64, 96), and in HSL hsl(208, 55%, 24%).

Is #1C4060 accessible as text?

On white, #1C4060 has a contrast ratio of 10.76:1 (passes WCAG AA for body text); on black it is 1.95:1 (fails). For text placed on #1C4060, use white for the best readability.

What is the closest Tailwind color to #1C4060?

The nearest Tailwind CSS token is sky-900 (#024A70).

What colors go well with #1C4060?

#1C4060 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5F3B1C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1C4060 below.

Is #1C4060 good for buttons?

#1C4060 works well for buttons and highlights, but use white text on #1C4060 — black text only reaches 1.95:1, below the 4.5:1 needed for normal-size labels.

Is #1C4060 the same as CSS darkslategray?

No — #1C4060 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#1C4060 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1C4060

Not just a swatch — here's how #1C4060 works with other colors. Named schemes with #1C4060 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #1C4060 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Yale Blue 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 #1C4060 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Yale Blue 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 #1C4060 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #416180

Yale 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 Yale Blue.

Vintage Leather Lead · 5 colors

Lead #1C4060 Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233B

Yale Blue 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 #1C4060 Secondary #596571 Support #969386 Ink #16140F

Yale 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 Yale Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #1C4060 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 30/100

Cool

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 39/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 27/100

Low

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

UI accent fit 50/100

Moderate

Workable accent with care around contrast.

Surface fit 40/100

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 #1C4060

For UI

For branding

For interior

For fashion

People also use #1C4060 with

Teal Green Midnight Blue Sepia Gainsboro Charcoal

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 10.8:1. Use

Subtle surface Use #C9D9E8 for cards and hover fills. Tint 80

Avoid beside #1C295F — 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 #1C4060 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #1C4060;
  --color-base-rgb: 28 64 96;
  --color-base-oklch: oklch(36.1% 0.069 247.8);
  --color-50: #F3F8FC;
  --color-100: #DFEBF6;
  --color-200: #C0D8ED;
  --color-300: #94BADB;
  --color-400: #6B9CC7;
  --color-500: #4A7EAB;
  --color-600: #3F6383;
  --color-700: #31495E;
  --color-800: #23313E;
  --color-900: #171F26;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F3F8FC',
    100: '#DFEBF6',
    200: '#C0D8ED',
    300: '#94BADB',
    400: '#6B9CC7',
    500: '#4A7EAB',
    600: '#3F6383',
    700: '#31495E',
    800: '#23313E',
    900: '#171F26',
  },
}

$base: #1C4060;
$base-ink: #FFFFFF;
$base-50: #F3F8FC;
$base-100: #DFEBF6;
$base-200: #C0D8ED;
$base-300: #94BADB;
$base-400: #6B9CC7;
$base-500: #4A7EAB;
$base-600: #3F6383;
$base-700: #31495E;
$base-800: #23313E;
$base-900: #171F26;
$base-hover: #16334C;
$base-subtle: #ADC6DD;

{
    "color": {
        "base": {
            "value": "#1C4060",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F8FC",
                "type": "color"
            },
            "100": {
                "value": "#DFEBF6",
                "type": "color"
            },
            "200": {
                "value": "#C0D8ED",
                "type": "color"
            },
            "300": {
                "value": "#94BADB",
                "type": "color"
            },
            "400": {
                "value": "#6B9CC7",
                "type": "color"
            },
            "500": {
                "value": "#4A7EAB",
                "type": "color"
            },
            "600": {
                "value": "#3F6383",
                "type": "color"
            },
            "700": {
                "value": "#31495E",
                "type": "color"
            },
            "800": {
                "value": "#23313E",
                "type": "color"
            },
            "900": {
                "value": "#171F26",
                "type": "color"
            }
        }
    }
}