What color is #180E8A?

#180E8A is a dark, vivid blue. In RGB it is rgb(24, 14, 138), and in HSL hsl(245, 82%, 30%).

Is #180E8A accessible as text?

On white, #180E8A has a contrast ratio of 14.30:1 (passes WCAG AA for body text); on black it is 1.47:1 (fails). For text placed on #180E8A, use white for the best readability.

What is the closest Tailwind color to #180E8A?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #180E8A?

#180E8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #818B0E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #180E8A below.

Is #180E8A good for buttons?

#180E8A works well for buttons and highlights, but use white text on #180E8A — black text only reaches 1.47:1, below the 4.5:1 needed for normal-size labels.

Is #180E8A the same as CSS darkblue?

No — #180E8A is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#180E8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #180E8A

Not just a swatch — here's how #180E8A works with other colors. Named schemes with #180E8A in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #180E8A Anchor #141210 Accent #DC9659 Secondary #252833 Surface #F3ECE3

Phthalo Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #180E8A Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #180047

Phthalo Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Phthalo Blue.

Coastal Morning Lead · 5 colors

Lead #180E8A Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Phthalo Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Vintage Leather Lead · 5 colors

Lead #180E8A Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #582239

Phthalo 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 #F8F4EF Accent #180E8A Secondary #475279 Support #9D8F88 Ink #18140F

Phthalo 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 Phthalo Blue carrying the quiet middle.

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Color Lab

How #180E8A 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 12/100

Cool

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

Softness 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 20/100

Very low

Clean and current — no dusty, aged cast.

Luxury 68/100

High

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

Brand distinctiveness 71/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 39/100

Low

Workable accent with care around contrast.

Surface fit 20/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 69/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #180E8A

For UI

For branding

For interior

For fashion

People also use #180E8A with

Denim Blue Indigo Olive Gainsboro Prussian Blue

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 14.3:1. Use

Subtle surface Use #CAC6F0 for cards and hover fills. Tint 80

Avoid beside #420E8B — 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 #180E8A 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: #180E8A;
  --color-base-rgb: 24 14 138;
  --color-base-oklch: oklch(30.7% 0.185 270.8);
  --color-50: #F2F0FE;
  --color-100: #DCD9FC;
  --color-200: #BAB5F8;
  --color-300: #8C83ED;
  --color-400: #6055DD;
  --color-500: #3E32C3;
  --color-600: #362E94;
  --color-700: #2C2669;
  --color-800: #201D44;
  --color-900: #15142A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  phthalo-blue: {
    50: '#F2F0FE',
    100: '#DCD9FC',
    200: '#BAB5F8',
    300: '#8C83ED',
    400: '#6055DD',
    500: '#3E32C3',
    600: '#362E94',
    700: '#2C2669',
    800: '#201D44',
    900: '#15142A',
  },
}

$base: #180E8A;
$base-ink: #FFFFFF;
$base-50: #F2F0FE;
$base-100: #DCD9FC;
$base-200: #BAB5F8;
$base-300: #8C83ED;
$base-400: #6055DD;
$base-500: #3E32C3;
$base-600: #362E94;
$base-700: #2C2669;
$base-800: #201D44;
$base-900: #15142A;
$base-hover: #130B6F;
$base-subtle: #AEA8EB;

{
    "color": {
        "base": {
            "value": "#180E8A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F0FE",
                "type": "color"
            },
            "100": {
                "value": "#DCD9FC",
                "type": "color"
            },
            "200": {
                "value": "#BAB5F8",
                "type": "color"
            },
            "300": {
                "value": "#8C83ED",
                "type": "color"
            },
            "400": {
                "value": "#6055DD",
                "type": "color"
            },
            "500": {
                "value": "#3E32C3",
                "type": "color"
            },
            "600": {
                "value": "#362E94",
                "type": "color"
            },
            "700": {
                "value": "#2C2669",
                "type": "color"
            },
            "800": {
                "value": "#201D44",
                "type": "color"
            },
            "900": {
                "value": "#15142A",
                "type": "color"
            }
        }
    }
}

Palettes built on #180E8A

Color Lab

Pairs with #180E8A

UI roles & guardrails

In real applications

Scales

Every model

Export