What color is #243191?

#243191 is a dark blue. In RGB it is rgb(36, 49, 145), and in HSL hsl(233, 60%, 35%).

Is #243191 accessible as text?

On white, #243191 has a contrast ratio of 10.92:1 (passes WCAG AA for body text); on black it is 1.92:1 (fails). For text placed on #243191, use white for the best readability.

What is the closest Tailwind color to #243191?

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

What colors go well with #243191?

#243191 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8F8224. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #243191 below.

Is #243191 good for buttons?

#243191 works well for buttons and highlights, but use white text on #243191 — black text only reaches 1.92:1, below the 4.5:1 needed for normal-size labels.

Is #243191 the same as CSS darkslateblue?

No — #243191 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#243191 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #243191

Not just a swatch — here's how #243191 works with other colors. Named schemes with #243191 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #243191 Anchor #141210 Accent #DC9659 Secondary #252933 Surface #F3ECE3

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 #243191 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #231152

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 #243191 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 #243191 Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #582239

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 #243191 Secondary #5A6586 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 #243191 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 14/100

Cool

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

Softness 28/100

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 30/100

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 61/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 64/100

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 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #243191

For UI

For branding

For interior

For fashion

People also use #243191 with

Steel Blue Rebecca Purple 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 10.9:1. Use

Subtle surface Use #D0D3EC for cards and hover fills. Tint 80

Avoid beside #3B248F — 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 #243191 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: #243191;
  --color-base-rgb: 36 49 145;
  --color-base-oklch: oklch(37.1% 0.157 270.5);
  --color-50: #F2F3FC;
  --color-100: #DEE1F8;
  --color-200: #BEC4EF;
  --color-300: #919ADE;
  --color-400: #6773CB;
  --color-500: #4652AF;
  --color-600: #3C4486;
  --color-700: #2F3560;
  --color-800: #22253F;
  --color-900: #161827;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  egyptian-blue: {
    50: '#F2F3FC',
    100: '#DEE1F8',
    200: '#BEC4EF',
    300: '#919ADE',
    400: '#6773CB',
    500: '#4652AF',
    600: '#3C4486',
    700: '#2F3560',
    800: '#22253F',
    900: '#161827',
  },
}

$base: #243191;
$base-ink: #FFFFFF;
$base-50: #F2F3FC;
$base-100: #DEE1F8;
$base-200: #BEC4EF;
$base-300: #919ADE;
$base-400: #6773CB;
$base-500: #4652AF;
$base-600: #3C4486;
$base-700: #2F3560;
$base-800: #22253F;
$base-900: #161827;
$base-hover: #1D2772;
$base-subtle: #B7BCE4;

{
    "color": {
        "base": {
            "value": "#243191",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F3FC",
                "type": "color"
            },
            "100": {
                "value": "#DEE1F8",
                "type": "color"
            },
            "200": {
                "value": "#BEC4EF",
                "type": "color"
            },
            "300": {
                "value": "#919ADE",
                "type": "color"
            },
            "400": {
                "value": "#6773CB",
                "type": "color"
            },
            "500": {
                "value": "#4652AF",
                "type": "color"
            },
            "600": {
                "value": "#3C4486",
                "type": "color"
            },
            "700": {
                "value": "#2F3560",
                "type": "color"
            },
            "800": {
                "value": "#22253F",
                "type": "color"
            },
            "900": {
                "value": "#161827",
                "type": "color"
            }
        }
    }
}

Palettes built on #243191

Color Lab

Pairs with #243191

UI roles & guardrails

In real applications

Scales

Every model

Export