What color is #143A67?

#143A67 is a dark blue. In RGB it is rgb(20, 58, 103), and in HSL hsl(213, 67%, 24%).

Is #143A67 accessible as text?

On white, #143A67 has a contrast ratio of 11.47:1 (passes WCAG AA for body text); on black it is 1.83:1 (fails). For text placed on #143A67, use white for the best readability.

What is the closest Tailwind color to #143A67?

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

What colors go well with #143A67?

#143A67 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #664114. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #143A67 below.

Is #143A67 good for buttons?

#143A67 works well for buttons and highlights, but use white text on #143A67 — black text only reaches 1.83:1, below the 4.5:1 needed for normal-size labels.

Is #143A67 the same as CSS midnightblue?

No — #143A67 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#143A67 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #143A67

Not just a swatch — here's how #143A67 works with other colors. Named schemes with #143A67 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #143A67 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 #143A67 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 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 #143A67 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #395C86

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 #143A67 Secondary #7F4537 Surface #E1DDC1 Accent #375246 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 #143A67 Secondary #546172 Support #9D8F89 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 #143A67 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 26/100

Cool

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

Softness 32/100

Low

Firm and assertive — carries weight and contrast.

Depth 64/100

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 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 35/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 50/100

Moderate

Workable accent with care around contrast.

Surface fit 35/100

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 #143A67

For UI

For branding

For interior

For fashion

People also use #143A67 with

Dark Cyan 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 11.5:1. Use

Subtle surface Use #C6D6EB for cards and hover fills. Tint 80

Avoid beside #141E66 — 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 #143A67 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: #143A67;
  --color-base-rgb: 20 58 103;
  --color-base-oklch: oklch(34.7% 0.090 254.8);
  --color-50: #F2F7FD;
  --color-100: #DCE9F9;
  --color-200: #BBD3F1;
  --color-300: #8CB3E3;
  --color-400: #6293D0;
  --color-500: #3F75B5;
  --color-600: #375D8B;
  --color-700: #2C4562;
  --color-800: #202F41;
  --color-900: #161E28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F2F7FD',
    100: '#DCE9F9',
    200: '#BBD3F1',
    300: '#8CB3E3',
    400: '#6293D0',
    500: '#3F75B5',
    600: '#375D8B',
    700: '#2C4562',
    800: '#202F41',
    900: '#161E28',
  },
}

$base: #143A67;
$base-ink: #FFFFFF;
$base-50: #F2F7FD;
$base-100: #DCE9F9;
$base-200: #BBD3F1;
$base-300: #8CB3E3;
$base-400: #6293D0;
$base-500: #3F75B5;
$base-600: #375D8B;
$base-700: #2C4562;
$base-800: #202F41;
$base-900: #161E28;
$base-hover: #102E52;
$base-subtle: #A7C2E2;

{
    "color": {
        "base": {
            "value": "#143A67",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F7FD",
                "type": "color"
            },
            "100": {
                "value": "#DCE9F9",
                "type": "color"
            },
            "200": {
                "value": "#BBD3F1",
                "type": "color"
            },
            "300": {
                "value": "#8CB3E3",
                "type": "color"
            },
            "400": {
                "value": "#6293D0",
                "type": "color"
            },
            "500": {
                "value": "#3F75B5",
                "type": "color"
            },
            "600": {
                "value": "#375D8B",
                "type": "color"
            },
            "700": {
                "value": "#2C4562",
                "type": "color"
            },
            "800": {
                "value": "#202F41",
                "type": "color"
            },
            "900": {
                "value": "#161E28",
                "type": "color"
            }
        }
    }
}