What color is #18368F?

#18368F is a dark, vivid blue. In RGB it is rgb(24, 54, 143), and in HSL hsl(225, 71%, 33%).

Is #18368F accessible as text?

On white, #18368F has a contrast ratio of 10.70:1 (passes WCAG AA for body text); on black it is 1.96:1 (fails). For text placed on #18368F, use white for the best readability.

What is the closest Tailwind color to #18368F?

The nearest Tailwind CSS token is blue-900 (#1C398E).

What colors go well with #18368F?

#18368F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #907218. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #18368F below.

Is #18368F good for buttons?

#18368F works well for buttons and highlights, but use white text on #18368F — black text only reaches 1.96:1, below the 4.5:1 needed for normal-size labels.

Is #18368F the same as CSS darkslateblue?

No — #18368F is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#18368F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #18368F

Not just a swatch — here's how #18368F works with other colors. Named schemes with #18368F in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #18368F Anchor #141210 Accent #DD965A Secondary #242933 Surface #F4ECE3

Egyptian 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 #18368F Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #1F1552

Egyptian 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 Egyptian Blue.

Coastal Morning Lead · 5 colors

Lead #18368F Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Egyptian 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 #18368F Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

Egyptian 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 #18368F Secondary #586786 Support #9D8F88 Ink #18140F

Egyptian 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 Egyptian Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #18368F 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 13/100

Cool

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

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 65/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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

Brand distinctiveness 59/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 65/100

High

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

Surface fit 16/100

Very low

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

Print safety 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #18368F

For UI

For branding

For interior

For fashion

People also use #18368F with

Bondi Blue Indigo Olive Brown 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 10.7:1. Use

Subtle surface Use #CBD4EE for cards and hover fills. Tint 80

Avoid beside #221890 — 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 #18368F 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: #18368F;
  --color-base-rgb: 24 54 143;
  --color-base-oklch: oklch(37.3% 0.152 265.2);
  --color-50: #F1F4FD;
  --color-100: #DBE3FA;
  --color-200: #B9C8F3;
  --color-300: #8AA1E5;
  --color-400: #5E7CD4;
  --color-500: #3C5BB9;
  --color-600: #354B8D;
  --color-700: #2B3964;
  --color-800: #1F2842;
  --color-900: #151A28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  egyptian-blue: {
    50: '#F1F4FD',
    100: '#DBE3FA',
    200: '#B9C8F3',
    300: '#8AA1E5',
    400: '#5E7CD4',
    500: '#3C5BB9',
    600: '#354B8D',
    700: '#2B3964',
    800: '#1F2842',
    900: '#151A28',
  },
}

$base: #18368F;
$base-ink: #FFFFFF;
$base-50: #F1F4FD;
$base-100: #DBE3FA;
$base-200: #B9C8F3;
$base-300: #8AA1E5;
$base-400: #5E7CD4;
$base-500: #3C5BB9;
$base-600: #354B8D;
$base-700: #2B3964;
$base-800: #1F2842;
$base-900: #151A28;
$base-hover: #142B73;
$base-subtle: #B0BEE7;

{
    "color": {
        "base": {
            "value": "#18368F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F4FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE3FA",
                "type": "color"
            },
            "200": {
                "value": "#B9C8F3",
                "type": "color"
            },
            "300": {
                "value": "#8AA1E5",
                "type": "color"
            },
            "400": {
                "value": "#5E7CD4",
                "type": "color"
            },
            "500": {
                "value": "#3C5BB9",
                "type": "color"
            },
            "600": {
                "value": "#354B8D",
                "type": "color"
            },
            "700": {
                "value": "#2B3964",
                "type": "color"
            },
            "800": {
                "value": "#1F2842",
                "type": "color"
            },
            "900": {
                "value": "#151A28",
                "type": "color"
            }
        }
    }
}

Palettes built on #18368F

Color Lab

Pairs with #18368F

UI roles & guardrails

In real applications

Scales

Every model

Export