What color is #37239D?

#37239D is a dark indigo. In RGB it is rgb(55, 35, 157), and in HSL hsl(250, 64%, 38%).

Is #37239D accessible as text?

On white, #37239D has a contrast ratio of 11.11:1 (passes WCAG AA for body text); on black it is 1.89:1 (fails). For text placed on #37239D, use white for the best readability.

What is the closest Tailwind color to #37239D?

The nearest Tailwind CSS token is indigo-800 (#372AAC).

What colors go well with #37239D?

#37239D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8A9F23. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #37239D below.

Is #37239D good for buttons?

#37239D works well for buttons and highlights, but use white text on #37239D — black text only reaches 1.89:1, below the 4.5:1 needed for normal-size labels.

Is #37239D the same as CSS darkslateblue?

No — #37239D is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color.

#37239D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #37239D

Not just a swatch — here's how #37239D works with other colors. Named schemes with #37239D in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #37239D Anchor #141210 Accent #DB9758 Secondary #272833 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 #37239D Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #2D0556

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 #37239D Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

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 #37239D Secondary #7F4534 Surface #EDD7C2 Accent #365247 Anchor #582238

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 #37239D Secondary #60638C Support #9D9088 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 #37239D 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 18/100

Cool

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

Softness 26/100

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 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 63/100

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 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 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #37239D

For UI

For branding

For interior

For fashion

People also use #37239D with

Denim Blue Grape Citron 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 11.1:1. Use

Subtle surface Use #D6D1EE for cards and hover fills. Tint 80

Avoid beside #61239F — 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 #37239D 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: #37239D;
  --color-base-rgb: 55 35 157;
  --color-base-oklch: oklch(37.4% 0.183 280.2);
  --color-50: #F4F2FD;
  --color-100: #E1DDF8;
  --color-200: #C5BCF0;
  --color-300: #9C8EE1;
  --color-400: #7664CE;
  --color-500: #5542B3;
  --color-600: #463989;
  --color-700: #362E61;
  --color-800: #262140;
  --color-900: #191627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  egyptian-blue: {
    50: '#F4F2FD',
    100: '#E1DDF8',
    200: '#C5BCF0',
    300: '#9C8EE1',
    400: '#7664CE',
    500: '#5542B3',
    600: '#463989',
    700: '#362E61',
    800: '#262140',
    900: '#191627',
  },
}

$base: #37239D;
$base-ink: #FFFFFF;
$base-50: #F4F2FD;
$base-100: #E1DDF8;
$base-200: #C5BCF0;
$base-300: #9C8EE1;
$base-400: #7664CE;
$base-500: #5542B3;
$base-600: #463989;
$base-700: #362E61;
$base-800: #262140;
$base-900: #191627;
$base-hover: #2C1C7F;
$base-subtle: #C0B9E7;

{
    "color": {
        "base": {
            "value": "#37239D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F2FD",
                "type": "color"
            },
            "100": {
                "value": "#E1DDF8",
                "type": "color"
            },
            "200": {
                "value": "#C5BCF0",
                "type": "color"
            },
            "300": {
                "value": "#9C8EE1",
                "type": "color"
            },
            "400": {
                "value": "#7664CE",
                "type": "color"
            },
            "500": {
                "value": "#5542B3",
                "type": "color"
            },
            "600": {
                "value": "#463989",
                "type": "color"
            },
            "700": {
                "value": "#362E61",
                "type": "color"
            },
            "800": {
                "value": "#262140",
                "type": "color"
            },
            "900": {
                "value": "#191627",
                "type": "color"
            }
        }
    }
}

Palettes built on #37239D

Color Lab

Pairs with #37239D

UI roles & guardrails

In real applications

Scales

Every model

Export