What color is #421B79?

#421B79 is a dark violet. In RGB it is rgb(66, 27, 121), and in HSL hsl(265, 64%, 29%).

Is #421B79 accessible as text?

On white, #421B79 has a contrast ratio of 12.62:1 (passes WCAG AA for body text); on black it is 1.66:1 (fails). For text placed on #421B79, use white for the best readability.

What is the closest Tailwind color to #421B79?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #421B79?

#421B79 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #52791B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #421B79 below.

Is #421B79 good for buttons?

#421B79 works well for buttons and highlights, but use white text on #421B79 — black text only reaches 1.66:1, below the 4.5:1 needed for normal-size labels.

Is #421B79 the same as CSS indigo?

No — #421B79 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#421B79 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #421B79

Not just a swatch — here's how #421B79 works with other colors. Named schemes with #421B79 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #421B79 Anchor #141210 Accent #DA9856 Secondary #2A2732 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 #421B79 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #2B023A

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.

Coastal Morning Lead · 5 colors

Lead #421B79 Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334A

Indigo 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 #421B79 Surface #F5E5D7 Anchor #5C2140 Accent #E5C2C8 Secondary #332B2F

Indigo 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 #421B79 Secondary #605778 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.

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Color Lab

How #421B79 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 32/100

Cool

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

Softness 26/100

Low

Firm and assertive — carries weight and contrast.

Depth 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 33/100

Low

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 57/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 53/100

Moderate

Workable accent with care around contrast.

Surface fit 18/100

Very low

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

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #421B79

For UI

For branding

For interior

For fashion

People also use #421B79 with

Egyptian Blue Purple Avocado 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 12.6:1. Use

Subtle surface Use #D8CAEB for cards and hover fills. Tint 80

Avoid beside #621B79 — 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 #421B79 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: #421B79;
  --color-base-rgb: 66 27 121;
  --color-base-oklch: oklch(33.9% 0.148 296.4);
  --color-50: #F6F2FD;
  --color-100: #E8DDF8;
  --color-200: #D2BCF0;
  --color-300: #B18EE1;
  --color-400: #9064CE;
  --color-500: #7142B3;
  --color-600: #5A3989;
  --color-700: #432E61;
  --color-800: #2E2140;
  --color-900: #1D1627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F6F2FD',
    100: '#E8DDF8',
    200: '#D2BCF0',
    300: '#B18EE1',
    400: '#9064CE',
    500: '#7142B3',
    600: '#5A3989',
    700: '#432E61',
    800: '#2E2140',
    900: '#1D1627',
  },
}

$base: #421B79;
$base-ink: #FFFFFF;
$base-50: #F6F2FD;
$base-100: #E8DDF8;
$base-200: #D2BCF0;
$base-300: #B18EE1;
$base-400: #9064CE;
$base-500: #7142B3;
$base-600: #5A3989;
$base-700: #432E61;
$base-800: #2E2140;
$base-900: #1D1627;
$base-hover: #351561;
$base-subtle: #C4AEE3;

{
    "color": {
        "base": {
            "value": "#421B79",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F2FD",
                "type": "color"
            },
            "100": {
                "value": "#E8DDF8",
                "type": "color"
            },
            "200": {
                "value": "#D2BCF0",
                "type": "color"
            },
            "300": {
                "value": "#B18EE1",
                "type": "color"
            },
            "400": {
                "value": "#9064CE",
                "type": "color"
            },
            "500": {
                "value": "#7142B3",
                "type": "color"
            },
            "600": {
                "value": "#5A3989",
                "type": "color"
            },
            "700": {
                "value": "#432E61",
                "type": "color"
            },
            "800": {
                "value": "#2E2140",
                "type": "color"
            },
            "900": {
                "value": "#1D1627",
                "type": "color"
            }
        }
    }
}