What color is #643A98?

#643A98 is a medium violet. In RGB it is rgb(100, 58, 152), and in HSL hsl(267, 45%, 41%).

Is #643A98 accessible as text?

On white, #643A98 has a contrast ratio of 8.08:1 (passes WCAG AA for body text); on black it is 2.60:1 (fails). For text placed on #643A98, use white for the best readability.

What is the closest Tailwind color to #643A98?

The nearest Tailwind CSS token is purple-800 (#6E11B0).

What colors go well with #643A98?

#643A98 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #6D983A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #643A98 below.

Is #643A98 good for buttons?

#643A98 works well for buttons and highlights, but use white text on #643A98 — black text only reaches 2.60:1, below the 4.5:1 needed for normal-size labels.

Is #643A98 the same as CSS rebeccapurple?

No — #643A98 is not the CSS named color rebeccapurple, but rebeccapurple (#663399) is the closest CSS named color.

#643A98 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #643A98

Not just a swatch — here's how #643A98 works with other colors. Named schemes with #643A98 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #643A98 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C7 Secondary #332B2F

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

Coastal Morning Lead · 5 colors

Lead #643A98 Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334B

Rebecca Purple 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 #643A98 Secondary #7E4631 Surface #EDD8C1 Accent #355248 Anchor #592236

Rebecca Purple plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Modern Café Dominant · 5 colors

Dominant #643A98 Anchor #3B2923 Surface #F2E1D1 Accent #739F7E Secondary #3C3734

Rebecca Purple anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #643A98 Secondary #827697 Support #9C9088 Ink #18140F

Rebecca Purple 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 Rebecca Purple carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #643A98 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 36/100

Cool

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

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 42/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 59/100

Moderate

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

Brand distinctiveness 40/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 89/100

Very high

Strong interactive accent — visible and can carry a legible label.

Surface fit 11/100

Very low

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

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #643A98

For UI

For branding

For interior

For fashion

People also use #643A98 with

Cerulean Plum Olive Drab Gainsboro Onyx

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 8.1:1. Use

Subtle surface Use #E0D7EB for cards and hover fills. Tint 80

Avoid beside #833A98 — 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 #643A98 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: #643A98;
  --color-base-rgb: 100 58 152;
  --color-base-oklch: oklch(44.7% 0.149 301.2);
  --color-50: #F7F4FB;
  --color-100: #EAE1F4;
  --color-200: #D4C4E8;
  --color-300: #B59BD5;
  --color-400: #9574BE;
  --color-500: #7653A2;
  --color-600: #5E457D;
  --color-700: #46355A;
  --color-800: #2F263B;
  --color-900: #1E1925;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  rebecca-purple: {
    50: '#F7F4FB',
    100: '#EAE1F4',
    200: '#D4C4E8',
    300: '#B59BD5',
    400: '#9574BE',
    500: '#7653A2',
    600: '#5E457D',
    700: '#46355A',
    800: '#2F263B',
    900: '#1E1925',
  },
}

$base: #643A98;
$base-ink: #FFFFFF;
$base-50: #F7F4FB;
$base-100: #EAE1F4;
$base-200: #D4C4E8;
$base-300: #B59BD5;
$base-400: #9574BE;
$base-500: #7653A2;
$base-600: #5E457D;
$base-700: #46355A;
$base-800: #2F263B;
$base-900: #1E1925;
$base-hover: #502E79;
$base-subtle: #D0C2E1;

{
    "color": {
        "base": {
            "value": "#643A98",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F4FB",
                "type": "color"
            },
            "100": {
                "value": "#EAE1F4",
                "type": "color"
            },
            "200": {
                "value": "#D4C4E8",
                "type": "color"
            },
            "300": {
                "value": "#B59BD5",
                "type": "color"
            },
            "400": {
                "value": "#9574BE",
                "type": "color"
            },
            "500": {
                "value": "#7653A2",
                "type": "color"
            },
            "600": {
                "value": "#5E457D",
                "type": "color"
            },
            "700": {
                "value": "#46355A",
                "type": "color"
            },
            "800": {
                "value": "#2F263B",
                "type": "color"
            },
            "900": {
                "value": "#1E1925",
                "type": "color"
            }
        }
    }
}

Palettes built on #643A98

Color Lab

Pairs with #643A98

UI roles & guardrails

In real applications

Scales

Every model

Export