What color is #4018A3?

#4018A3 is a dark, vivid indigo. In RGB it is rgb(64, 24, 163), and in HSL hsl(257, 74%, 37%).

Is #4018A3 accessible as text?

On white, #4018A3 has a contrast ratio of 11.18:1 (passes WCAG AA for body text); on black it is 1.88:1 (fails). For text placed on #4018A3, use white for the best readability.

What is the closest Tailwind color to #4018A3?

The nearest Tailwind CSS token is violet-900 (#4D179A).

What colors go well with #4018A3?

#4018A3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7DA419. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #4018A3 below.

Is #4018A3 good for buttons?

#4018A3 works well for buttons and highlights, but use white text on #4018A3 — black text only reaches 1.88:1, below the 4.5:1 needed for normal-size labels.

Is #4018A3 the same as CSS indigo?

No — #4018A3 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#4018A3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #4018A3

Not just a swatch — here's how #4018A3 works with other colors. Named schemes with #4018A3 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #4018A3 Anchor #141210 Accent #DB9757 Secondary #282833 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 #4018A3 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #320058

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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #4018A3 Secondary #63628F 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.

Coastal Morning Lead · 5 colors

Lead #4018A3 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.

Sunset Warmth Glow · 5 colors

Glow #4018A3 Secondary #E86A6F Accent #F5934C Anchor #583B57 Surface #F7E7D7

Egyptian Blue glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #4018A3 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 21/100

Cool

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 67/100

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 21/100

Low

Clean and current — no dusty, aged cast.

Luxury 61/100

High

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

Brand distinctiveness 77/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 58/100

Moderate

Workable accent with care around contrast.

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 #4018A3

For UI

For branding

For interior

For fashion

People also use #4018A3 with

Cerulean Mauveine Greenery Gainsboro Russian Violet

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 11.2:1. Use

Subtle surface Use #D7CEF0 for cards and hover fills. Tint 80

Avoid beside #6F19A4 — 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 #4018A3 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: #4018A3;
  --color-base-rgb: 64 24 163;
  --color-base-oklch: oklch(37.7% 0.198 284.8);
  --color-50: #F5F1FE;
  --color-100: #E4DBFB;
  --color-200: #C9B8F4;
  --color-300: #A388E7;
  --color-400: #7E5CD6;
  --color-500: #5E39BC;
  --color-600: #4D338F;
  --color-700: #3A2A65;
  --color-800: #291F42;
  --color-900: #1A1529;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  egyptian-blue: {
    50: '#F5F1FE',
    100: '#E4DBFB',
    200: '#C9B8F4',
    300: '#A388E7',
    400: '#7E5CD6',
    500: '#5E39BC',
    600: '#4D338F',
    700: '#3A2A65',
    800: '#291F42',
    900: '#1A1529',
  },
}

$base: #4018A3;
$base-ink: #FFFFFF;
$base-50: #F5F1FE;
$base-100: #E4DBFB;
$base-200: #C9B8F4;
$base-300: #A388E7;
$base-400: #7E5CD6;
$base-500: #5E39BC;
$base-600: #4D338F;
$base-700: #3A2A65;
$base-800: #291F42;
$base-900: #1A1529;
$base-hover: #331483;
$base-subtle: #C3B4EA;

{
    "color": {
        "base": {
            "value": "#4018A3",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F1FE",
                "type": "color"
            },
            "100": {
                "value": "#E4DBFB",
                "type": "color"
            },
            "200": {
                "value": "#C9B8F4",
                "type": "color"
            },
            "300": {
                "value": "#A388E7",
                "type": "color"
            },
            "400": {
                "value": "#7E5CD6",
                "type": "color"
            },
            "500": {
                "value": "#5E39BC",
                "type": "color"
            },
            "600": {
                "value": "#4D338F",
                "type": "color"
            },
            "700": {
                "value": "#3A2A65",
                "type": "color"
            },
            "800": {
                "value": "#291F42",
                "type": "color"
            },
            "900": {
                "value": "#1A1529",
                "type": "color"
            }
        }
    }
}

Palettes built on #4018A3

Color Lab

Pairs with #4018A3

UI roles & guardrails

In real applications

Scales

Every model

Export