What color is #661C70?

#661C70 is a dark purple. In RGB it is rgb(102, 28, 112), and in HSL hsl(293, 60%, 27%).

Is #661C70 accessible as text?

On white, #661C70 has a contrast ratio of 10.69:1 (passes WCAG AA for body text); on black it is 1.97:1 (fails). For text placed on #661C70, use white for the best readability.

What is the closest Tailwind color to #661C70?

The nearest Tailwind CSS token is fuchsia-900 (#721378).

What colors go well with #661C70?

#661C70 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #256E1C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #661C70 below.

Is #661C70 good for buttons?

#661C70 works well for buttons and highlights, but use white text on #661C70 — black text only reaches 1.97:1, below the 4.5:1 needed for normal-size labels.

Is #661C70 the same as CSS purple?

No — #661C70 is not the CSS named color purple, but purple (#800080) is the closest CSS named color.

#661C70 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #661C70

Not just a swatch — here's how #661C70 works with other colors. Named schemes with #661C70 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #661C70 Surface #F5E6D7 Anchor #5D203E 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 #661C70 Secondary #7E472F Surface #ECD8C1 Accent #345249 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 #661C70 Anchor #3B2922 Surface #F2E2D1 Accent #9E9362 Secondary #3C3733

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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #661C70 Secondary #79607C 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.

Tech Product Signal · 5 colors

Signal #661C70 Surface #14161A Highlight #F4F6F8 Secondary #5C6573 Accent #874690

Byzantium is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Byzantium.

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Color Lab

How #661C70 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 52/100

Neutral

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

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 64/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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 69/100

High

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

Surface fit 15/100

Very low

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

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #661C70

For UI

For branding

For interior

For fashion

People also use #661C70 with

Indigo Tyrian Purple Dark Green Gainsboro Eggplant

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 10.7:1. Use

Subtle surface Use #E6CAEA for cards and hover fills. Tint 80

Avoid beside #6E1C5C — 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 #661C70 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: #661C70;
  --color-base-rgb: 102 28 112;
  --color-base-oklch: oklch(38.3% 0.149 322.7);
  --color-50: #FBF2FC;
  --color-100: #F5DEF8;
  --color-200: #E9BEEF;
  --color-300: #D591DE;
  --color-400: #BF67CB;
  --color-500: #A346AF;
  --color-600: #7E3C86;
  --color-700: #5A2F60;
  --color-800: #3C223F;
  --color-900: #251627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  byzantium: {
    50: '#FBF2FC',
    100: '#F5DEF8',
    200: '#E9BEEF',
    300: '#D591DE',
    400: '#BF67CB',
    500: '#A346AF',
    600: '#7E3C86',
    700: '#5A2F60',
    800: '#3C223F',
    900: '#251627',
  },
}

$base: #661C70;
$base-ink: #FFFFFF;
$base-50: #FBF2FC;
$base-100: #F5DEF8;
$base-200: #E9BEEF;
$base-300: #D591DE;
$base-400: #BF67CB;
$base-500: #A346AF;
$base-600: #7E3C86;
$base-700: #5A2F60;
$base-800: #3C223F;
$base-900: #251627;
$base-hover: #501658;
$base-subtle: #DBAEE1;

{
    "color": {
        "base": {
            "value": "#661C70",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FBF2FC",
                "type": "color"
            },
            "100": {
                "value": "#F5DEF8",
                "type": "color"
            },
            "200": {
                "value": "#E9BEEF",
                "type": "color"
            },
            "300": {
                "value": "#D591DE",
                "type": "color"
            },
            "400": {
                "value": "#BF67CB",
                "type": "color"
            },
            "500": {
                "value": "#A346AF",
                "type": "color"
            },
            "600": {
                "value": "#7E3C86",
                "type": "color"
            },
            "700": {
                "value": "#5A2F60",
                "type": "color"
            },
            "800": {
                "value": "#3C223F",
                "type": "color"
            },
            "900": {
                "value": "#251627",
                "type": "color"
            }
        }
    }
}

Palettes built on #661C70

Color Lab

Pairs with #661C70

UI roles & guardrails

In real applications

Scales

Every model

Export