What color is #63178F?

#63178F is a dark, vivid violet. In RGB it is rgb(99, 23, 143), and in HSL hsl(278, 72%, 33%).

Is #63178F accessible as text?

On white, #63178F has a contrast ratio of 10.25:1 (passes WCAG AA for body text); on black it is 2.05:1 (fails). For text placed on #63178F, use white for the best readability.

What is the closest Tailwind color to #63178F?

The nearest Tailwind CSS token is purple-900 (#59168B).

What colors go well with #63178F?

#63178F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #449118. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #63178F below.

Is #63178F good for buttons?

#63178F works well for buttons and highlights, but use white text on #63178F — black text only reaches 2.05:1, below the 4.5:1 needed for normal-size labels.

Is #63178F the same as CSS rebeccapurple?

No — #63178F is not the CSS named color rebeccapurple, but rebeccapurple (#663399) is the closest CSS named color.

#63178F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #63178F

Not just a swatch — here's how #63178F works with other colors. Named schemes with #63178F in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #63178F Surface #F5E6D7 Anchor #5C213F 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 #63178F 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 #63178F Secondary #7E4630 Surface #EDD8C1 Accent #355249 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 #63178F Anchor #3B2923 Surface #F2E1D1 Accent #9F9362 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 #63178F Secondary #79648B 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 #63178F 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 40/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 28/100

Low

Firm and assertive — carries weight and contrast.

Depth 64/100

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 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 61/100

High

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

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 69/100

High

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

Surface fit 14/100

Very low

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

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #63178F

For UI

For branding

For interior

For fashion

People also use #63178F with

Klein Blue Mardi Gras Forest Green 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 10.2:1. Use

Subtle surface Use #E2CBEF for cards and hover fills. Tint 80

Avoid beside #8D1891 — 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 #63178F 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: #63178F;
  --color-base-rgb: 99 23 143;
  --color-base-oklch: oklch(39.8% 0.182 308.6);
  --color-50: #F9F1FD;
  --color-100: #EFDBFA;
  --color-200: #DEB9F3;
  --color-300: #C489E6;
  --color-400: #A95DD5;
  --color-500: #8B3BBA;
  --color-600: #6D348E;
  --color-700: #4F2A64;
  --color-800: #351F42;
  --color-900: #211528;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  rebecca-purple: {
    50: '#F9F1FD',
    100: '#EFDBFA',
    200: '#DEB9F3',
    300: '#C489E6',
    400: '#A95DD5',
    500: '#8B3BBA',
    600: '#6D348E',
    700: '#4F2A64',
    800: '#351F42',
    900: '#211528',
  },
}

$base: #63178F;
$base-ink: #FFFFFF;
$base-50: #F9F1FD;
$base-100: #EFDBFA;
$base-200: #DEB9F3;
$base-300: #C489E6;
$base-400: #A95DD5;
$base-500: #8B3BBA;
$base-600: #6D348E;
$base-700: #4F2A64;
$base-800: #351F42;
$base-900: #211528;
$base-hover: #501374;
$base-subtle: #D3B0E8;

{
    "color": {
        "base": {
            "value": "#63178F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F1FD",
                "type": "color"
            },
            "100": {
                "value": "#EFDBFA",
                "type": "color"
            },
            "200": {
                "value": "#DEB9F3",
                "type": "color"
            },
            "300": {
                "value": "#C489E6",
                "type": "color"
            },
            "400": {
                "value": "#A95DD5",
                "type": "color"
            },
            "500": {
                "value": "#8B3BBA",
                "type": "color"
            },
            "600": {
                "value": "#6D348E",
                "type": "color"
            },
            "700": {
                "value": "#4F2A64",
                "type": "color"
            },
            "800": {
                "value": "#351F42",
                "type": "color"
            },
            "900": {
                "value": "#211528",
                "type": "color"
            }
        }
    }
}

Palettes built on #63178F

Color Lab

Pairs with #63178F

UI roles & guardrails

In real applications

Scales

Every model

Export