What color is #663399?

Rebecca Purple (#663399) is a medium violet. In RGB it is rgb(102, 51, 153), and in HSL hsl(270, 50%, 40%).

Is #663399 accessible as text?

On white, #663399 has a contrast ratio of 8.41:1 (passes WCAG AA for body text); on black it is 2.50:1 (fails). For text placed on #663399, use white for the best readability.

What is the closest Tailwind color to #663399?

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

What colors go well with #663399?

#663399 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #669933. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #663399 below.

Is Rebecca Purple good for buttons?

Rebecca Purple works well for buttons and highlights, but use white text on #663399 — black text only reaches 2.50:1, below the 4.5:1 needed for normal-size labels.

Is Rebecca Purple the same as CSS rebeccapurple?

Yes — #663399 is the CSS named color rebeccapurple.

Rebecca Purple (#663399) Color Palette, HEX, RGB & Design Ideas

Palettes built on Rebecca Purple

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

Berry & Cream Lead · 5 colors

Lead #663399 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 #663399 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 #663399 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 #663399 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 #663399 Secondary #817396 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.

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Color Lab

How Rebecca Purple 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 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 58/100

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 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 59/100

Moderate

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

Brand distinctiveness 43/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 86/100

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 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with Rebecca Purple

For UI

For branding

For interior

For fashion

People also use Rebecca Purple 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 8.4:1. Use

Subtle surface Use #E0D5EB for cards and hover fills. Tint 80

Avoid beside #883399 — 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 Rebecca Purple 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: #663399;
  --color-base-rgb: 102 51 153;
  --color-base-oklch: oklch(44.0% 0.160 303.4);
  --color-50: #F7F3FC;
  --color-100: #EBE0F5;
  --color-200: #D6C2EB;
  --color-300: #B897D8;
  --color-400: #9970C2;
  --color-500: #7A4EA6;
  --color-600: #614280;
  --color-700: #47335C;
  --color-800: #30243C;
  --color-900: #1F1825;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  rebecca-purple: {
    50: '#F7F3FC',
    100: '#EBE0F5',
    200: '#D6C2EB',
    300: '#B897D8',
    400: '#9970C2',
    500: '#7A4EA6',
    600: '#614280',
    700: '#47335C',
    800: '#30243C',
    900: '#1F1825',
  },
}

$base: #663399;
$base-ink: #FFFFFF;
$base-50: #F7F3FC;
$base-100: #EBE0F5;
$base-200: #D6C2EB;
$base-300: #B897D8;
$base-400: #9970C2;
$base-500: #7A4EA6;
$base-600: #614280;
$base-700: #47335C;
$base-800: #30243C;
$base-900: #1F1825;
$base-hover: #52297A;
$base-subtle: #D1C0E3;

{
    "color": {
        "base": {
            "value": "#663399",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F3FC",
                "type": "color"
            },
            "100": {
                "value": "#EBE0F5",
                "type": "color"
            },
            "200": {
                "value": "#D6C2EB",
                "type": "color"
            },
            "300": {
                "value": "#B897D8",
                "type": "color"
            },
            "400": {
                "value": "#9970C2",
                "type": "color"
            },
            "500": {
                "value": "#7A4EA6",
                "type": "color"
            },
            "600": {
                "value": "#614280",
                "type": "color"
            },
            "700": {
                "value": "#47335C",
                "type": "color"
            },
            "800": {
                "value": "#30243C",
                "type": "color"
            },
            "900": {
                "value": "#1F1825",
                "type": "color"
            }
        }
    }
}

Palettes built on Rebecca Purple

Color Lab

Pairs with Rebecca Purple

UI roles & guardrails

In real applications

Scales

Every model

Export