What color is #613663?

#613663 is a dark, muted purple. In RGB it is rgb(97, 54, 99), and in HSL hsl(297, 29%, 30%).

Is #613663 accessible as text?

On white, #613663 has a contrast ratio of 9.48:1 (passes WCAG AA for body text); on black it is 2.22:1 (fails). For text placed on #613663, use white for the best readability.

What is the closest Tailwind color to #613663?

The nearest Tailwind CSS token is mauve-600 (#594C5B).

What colors go well with #613663?

#613663 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #396336. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #613663 below.

Is #613663 good for buttons?

#613663 works well for buttons and highlights, but use white text on #613663 — black text only reaches 2.22:1, below the 4.5:1 needed for normal-size labels.

Is #613663 the same as CSS darkslateblue?

No — #613663 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#613663 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #613663

Not just a swatch — here's how #613663 works with other colors. Named schemes with #613663 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #613663 Surface #F5E6D7 Anchor #5D203D Accent #E6C2C6 Secondary #332B2E

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

Vintage Leather Lead · 5 colors

Lead #613663 Secondary #7D472E Surface #ECD8C1 Accent #34524A Anchor #592234

Byzantium 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 #613663 Anchor #3B2922 Surface #F2E2D1 Accent #9D9362 Secondary #3C3833

Byzantium 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.

Japanese Sand Base · 5 colors

Base #613663 Surface #F1E8DC Highlight #F7F0E7 Secondary #BDADA1 Ink #2C2723

Byzantium sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #613663 Secondary #7A6A7A Support #9C9087 Ink #18140F

Byzantium 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 Byzantium carrying the quiet middle.

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Color Lab

How #613663 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 53/100

Neutral

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

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 59/100

Moderate

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

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 64/100

High

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 64/100

High

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

Brand distinctiveness 24/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 69/100

High

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

Surface fit 31/100

Low

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #613663

For UI

For branding

For interior

For fashion

People also use #613663 with

Ultra Violet Eggplant Hunter Green Gainsboro

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 9.5:1. Use

Subtle surface Use #E2D4E3 for cards and hover fills. Tint 80

Avoid beside #633656 — 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 #613663 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: #613663;
  --color-base-rgb: 97 54 99;
  --color-base-oklch: oklch(40.4% 0.090 325.5);
  --color-50: #FAF5FA;
  --color-100: #F0E4F1;
  --color-200: #E1CAE2;
  --color-300: #C8A5CA;
  --color-400: #AF81B1;
  --color-500: #916194;
  --color-600: #714F73;
  --color-700: #523C53;
  --color-800: #372937;
  --color-900: #221B23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  byzantium: {
    50: '#FAF5FA',
    100: '#F0E4F1',
    200: '#E1CAE2',
    300: '#C8A5CA',
    400: '#AF81B1',
    500: '#916194',
    600: '#714F73',
    700: '#523C53',
    800: '#372937',
    900: '#221B23',
  },
}

$base: #613663;
$base-ink: #FFFFFF;
$base-50: #FAF5FA;
$base-100: #F0E4F1;
$base-200: #E1CAE2;
$base-300: #C8A5CA;
$base-400: #AF81B1;
$base-500: #916194;
$base-600: #714F73;
$base-700: #523C53;
$base-800: #372937;
$base-900: #221B23;
$base-hover: #4D2B4F;
$base-subtle: #D4BED5;

{
    "color": {
        "base": {
            "value": "#613663",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FAF5FA",
                "type": "color"
            },
            "100": {
                "value": "#F0E4F1",
                "type": "color"
            },
            "200": {
                "value": "#E1CAE2",
                "type": "color"
            },
            "300": {
                "value": "#C8A5CA",
                "type": "color"
            },
            "400": {
                "value": "#AF81B1",
                "type": "color"
            },
            "500": {
                "value": "#916194",
                "type": "color"
            },
            "600": {
                "value": "#714F73",
                "type": "color"
            },
            "700": {
                "value": "#523C53",
                "type": "color"
            },
            "800": {
                "value": "#372937",
                "type": "color"
            },
            "900": {
                "value": "#221B23",
                "type": "color"
            }
        }
    }
}

Palettes built on #613663

Color Lab

Pairs with #613663

UI roles & guardrails

In real applications

Scales

Every model

Export