What color is #400EA5?

#400EA5 is a dark, vivid violet. In RGB it is rgb(64, 14, 165), and in HSL hsl(260, 84%, 35%).

Is #400EA5 accessible as text?

On white, #400EA5 has a contrast ratio of 11.51:1 (passes WCAG AA for body text); on black it is 1.82:1 (fails). For text placed on #400EA5, use white for the best readability.

What is the closest Tailwind color to #400EA5?

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

What colors go well with #400EA5?

#400EA5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #72A40E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #400EA5 below.

Is #400EA5 good for buttons?

#400EA5 works well for buttons and highlights, but use white text on #400EA5 — black text only reaches 1.82:1, below the 4.5:1 needed for normal-size labels.

Is #400EA5 the same as CSS indigo?

No — #400EA5 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#400EA5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #400EA5

Not just a swatch — here's how #400EA5 works with other colors. Named schemes with #400EA5 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #400EA5 Anchor #141210 Accent #DB9757 Secondary #282833 Surface #F3ECE3

Indigo 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 #400EA5 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #320058

Indigo 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 Indigo.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #400EA5 Secondary #62618E Support #9D9088 Ink #18140F

Indigo 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 Indigo carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #400EA5 Accent #A5C4C3 Surface #EAD5BF Secondary #9AA0A1 Anchor #22334A

Indigo 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 #400EA5 Secondary #E86A6F Accent #F5934C Anchor #583B57 Surface #F7E7D7

Indigo 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 #400EA5 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 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 68/100

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 18/100

Very low

Clean and current — no dusty, aged cast.

Luxury 61/100

High

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

Brand distinctiveness 80/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 54/100

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 71/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #400EA5

For UI

For branding

For interior

For fashion

People also use #400EA5 with

Sapphire Blue Mauveine Olive Drab 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 11.5:1. Use

Subtle surface Use #D7CAF2 for cards and hover fills. Tint 80

Avoid beside #720EA4 — 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 #400EA5 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: #400EA5;
  --color-base-rgb: 64 14 165;
  --color-base-oklch: oklch(37.2% 0.206 285.1);
  --color-50: #F5F0FE;
  --color-100: #E5D8FD;
  --color-200: #CBB4F8;
  --color-300: #A681EE;
  --color-400: #8253DF;
  --color-500: #6230C4;
  --color-600: #4F2D95;
  --color-700: #3C2569;
  --color-800: #2A1C45;
  --color-900: #1B132A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F5F0FE',
    100: '#E5D8FD',
    200: '#CBB4F8',
    300: '#A681EE',
    400: '#8253DF',
    500: '#6230C4',
    600: '#4F2D95',
    700: '#3C2569',
    800: '#2A1C45',
    900: '#1B132A',
  },
}

$base: #400EA5;
$base-ink: #FFFFFF;
$base-50: #F5F0FE;
$base-100: #E5D8FD;
$base-200: #CBB4F8;
$base-300: #A681EE;
$base-400: #8253DF;
$base-500: #6230C4;
$base-600: #4F2D95;
$base-700: #3C2569;
$base-800: #2A1C45;
$base-900: #1B132A;
$base-hover: #330B83;
$base-subtle: #C3AEED;

{
    "color": {
        "base": {
            "value": "#400EA5",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F0FE",
                "type": "color"
            },
            "100": {
                "value": "#E5D8FD",
                "type": "color"
            },
            "200": {
                "value": "#CBB4F8",
                "type": "color"
            },
            "300": {
                "value": "#A681EE",
                "type": "color"
            },
            "400": {
                "value": "#8253DF",
                "type": "color"
            },
            "500": {
                "value": "#6230C4",
                "type": "color"
            },
            "600": {
                "value": "#4F2D95",
                "type": "color"
            },
            "700": {
                "value": "#3C2569",
                "type": "color"
            },
            "800": {
                "value": "#2A1C45",
                "type": "color"
            },
            "900": {
                "value": "#1B132A",
                "type": "color"
            }
        }
    }
}

Palettes built on #400EA5

Color Lab

Pairs with #400EA5

UI roles & guardrails

In real applications

Scales

Every model

Export