What color is #402BFD?

#402BFD is a medium, vivid indigo. In RGB it is rgb(64, 43, 253), and in HSL hsl(246, 98%, 58%).

Is #402BFD accessible as text?

On white, #402BFD has a contrast ratio of 7.04:1 (passes WCAG AA for body text); on black it is 2.98:1 (fails). For text placed on #402BFD, use white for the best readability.

What is the closest Tailwind color to #402BFD?

The nearest Tailwind CSS token is indigo-600 (#4F39F6).

What colors go well with #402BFD?

#402BFD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E8FD2B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #402BFD below.

Is #402BFD good for buttons?

#402BFD works well for buttons and highlights, but use white text on #402BFD — black text only reaches 2.98:1, below the 4.5:1 needed for normal-size labels.

Is #402BFD the same as CSS blue?

No — #402BFD is not the CSS named color blue, but blue (#0000FF) is the closest CSS named color.

#402BFD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #402BFD

Not just a swatch — here's how #402BFD works with other colors. Named schemes with #402BFD in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #402BFD Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #5B67FF

Ultramarine is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Ultramarine.

Coastal Morning Lead · 5 colors

Lead #402BFD Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Ultramarine opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Berry & Cream Lead · 5 colors

Lead #402BFD Surface #F6E5D8 Anchor #5B2143 Accent #E5C2C9 Secondary #322B2F

Ultramarine sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #402BFD Secondary #7786C6 Support #9D8F88 Ink #18140F

Ultramarine 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 Ultramarine carrying the quiet middle.

Sunset Warmth Glow · 5 colors

Glow #402BFD Secondary #E86A73 Accent #F6924F Anchor #573B58 Surface #F7E7D7

Ultramarine 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 #402BFD 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 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 57/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 0/100

Very low

Clean and current — no dusty, aged cast.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 100/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 8/100

Very low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 53/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #402BFD

For UI

For branding

For interior

For fashion

People also use #402BFD with

Cornflower Blue Electric Purple Pear 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 7.0:1. Use

Subtle surface Use #DDDAF9 for cards and hover fills. Tint 80

Avoid beside #862BFD — 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 #402BFD 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: #402BFD;
  --color-base-rgb: 64 43 253;
  --color-base-oklch: oklch(49.4% 0.283 273.2);
  --color-50: #F2F0FE;
  --color-100: #DCD8FD;
  --color-200: #B8B1FC;
  --color-300: #8578F7;
  --color-400: #5848EA;
  --color-500: #3524D1;
  --color-600: #30249E;
  --color-700: #28206F;
  --color-800: #1E1948;
  --color-900: #14112C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  ultramarine: {
    50: '#F2F0FE',
    100: '#DCD8FD',
    200: '#B8B1FC',
    300: '#8578F7',
    400: '#5848EA',
    500: '#3524D1',
    600: '#30249E',
    700: '#28206F',
    800: '#1E1948',
    900: '#14112C',
  },
}

$base: #402BFD;
$base-ink: #FFFFFF;
$base-50: #F2F0FE;
$base-100: #DCD8FD;
$base-200: #B8B1FC;
$base-300: #8578F7;
$base-400: #5848EA;
$base-500: #3524D1;
$base-600: #30249E;
$base-700: #28206F;
$base-800: #1E1948;
$base-900: #14112C;
$base-hover: #1A02EA;
$base-subtle: #CCC7F7;

{
    "color": {
        "base": {
            "value": "#402BFD",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2F0FE",
                "type": "color"
            },
            "100": {
                "value": "#DCD8FD",
                "type": "color"
            },
            "200": {
                "value": "#B8B1FC",
                "type": "color"
            },
            "300": {
                "value": "#8578F7",
                "type": "color"
            },
            "400": {
                "value": "#5848EA",
                "type": "color"
            },
            "500": {
                "value": "#3524D1",
                "type": "color"
            },
            "600": {
                "value": "#30249E",
                "type": "color"
            },
            "700": {
                "value": "#28206F",
                "type": "color"
            },
            "800": {
                "value": "#1E1948",
                "type": "color"
            },
            "900": {
                "value": "#14112C",
                "type": "color"
            }
        }
    }
}

Palettes built on #402BFD

Color Lab

Pairs with #402BFD

UI roles & guardrails

In real applications

Scales

Every model

Export