What color is #173191?

#173191 is a dark, vivid blue. In RGB it is rgb(23, 49, 145), and in HSL hsl(227, 73%, 33%).

Is #173191 accessible as text?

On white, #173191 has a contrast ratio of 11.14:1 (passes WCAG AA for body text); on black it is 1.88:1 (fails). For text placed on #173191, use white for the best readability.

What is the closest Tailwind color to #173191?

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

What colors go well with #173191?

#173191 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #927717. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #173191 below.

Is #173191 good for buttons?

#173191 works well for buttons and highlights, but use white text on #173191 — black text only reaches 1.88:1, below the 4.5:1 needed for normal-size labels.

Is #173191 the same as CSS darkslateblue?

No — #173191 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#173191 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #173191

Not just a swatch — here's how #173191 works with other colors. Named schemes with #173191 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #173191 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 #173191 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #1E1052

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 #173191 Accent #A5C4C2 Surface #EAD5C0 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 #173191 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 #173191 Secondary #566485 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 #173191 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 11/100

Cool

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

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 28/100

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 62/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 61/100

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 71/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #173191

For UI

For branding

For interior

For fashion

People also use #173191 with

Bondi Blue Indigo Olive Gainsboro Gunmetal 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 11.1:1. Use

Subtle surface Use #CBD3EF for cards and hover fills. Tint 80

Avoid beside #251792 — 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 #173191 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #173191;
  --color-base-rgb: 23 49 145;
  --color-base-oklch: oklch(36.5% 0.161 266.2);
  --color-50: #F1F4FD;
  --color-100: #DBE2FA;
  --color-200: #B9C5F4;
  --color-300: #889DE7;
  --color-400: #5D77D5;
  --color-500: #3A56BB;
  --color-600: #33478E;
  --color-700: #2A3765;
  --color-800: #1F2742;
  --color-900: #151928;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  egyptian-blue: {
    50: '#F1F4FD',
    100: '#DBE2FA',
    200: '#B9C5F4',
    300: '#889DE7',
    400: '#5D77D5',
    500: '#3A56BB',
    600: '#33478E',
    700: '#2A3765',
    800: '#1F2742',
    900: '#151928',
  },
}

$base: #173191;
$base-ink: #FFFFFF;
$base-50: #F1F4FD;
$base-100: #DBE2FA;
$base-200: #B9C5F4;
$base-300: #889DE7;
$base-400: #5D77D5;
$base-500: #3A56BB;
$base-600: #33478E;
$base-700: #2A3765;
$base-800: #1F2742;
$base-900: #151928;
$base-hover: #122774;
$base-subtle: #AFBCE8;

{
    "color": {
        "base": {
            "value": "#173191",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F4FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE2FA",
                "type": "color"
            },
            "200": {
                "value": "#B9C5F4",
                "type": "color"
            },
            "300": {
                "value": "#889DE7",
                "type": "color"
            },
            "400": {
                "value": "#5D77D5",
                "type": "color"
            },
            "500": {
                "value": "#3A56BB",
                "type": "color"
            },
            "600": {
                "value": "#33478E",
                "type": "color"
            },
            "700": {
                "value": "#2A3765",
                "type": "color"
            },
            "800": {
                "value": "#1F2742",
                "type": "color"
            },
            "900": {
                "value": "#151928",
                "type": "color"
            }
        }
    }
}

Palettes built on #173191

Color Lab

Pairs with #173191

UI roles & guardrails

In real applications

Scales

Every model

Export