What color is #660EB4?

#660EB4 is a dark, vivid violet. In RGB it is rgb(102, 14, 180), and in HSL hsl(272, 86%, 38%).

Is #660EB4 accessible as text?

On white, #660EB4 has a contrast ratio of 9.18:1 (passes WCAG AA for body text); on black it is 2.29:1 (fails). For text placed on #660EB4, use white for the best readability.

What is the closest Tailwind color to #660EB4?

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

What colors go well with #660EB4?

#660EB4 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5BB40E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #660EB4 below.

Is #660EB4 good for buttons?

#660EB4 works well for buttons and highlights, but use white text on #660EB4 — black text only reaches 2.29:1, below the 4.5:1 needed for normal-size labels.

Is #660EB4 the same as CSS rebeccapurple?

No — #660EB4 is not the CSS named color rebeccapurple, but rebeccapurple (#663399) is the closest CSS named color.

#660EB4 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #660EB4

Not just a swatch — here's how #660EB4 works with other colors. Named schemes with #660EB4 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #660EB4 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C7 Secondary #332B2F

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

Tech Product Signal · 5 colors

Signal #660EB4 Surface #14161A Highlight #F4F6F8 Secondary #5C6572 Accent #854BD3

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #660EB4 Secondary #7E6D9F Support #9C9088 Ink #18140F

Grape 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 Grape carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #660EB4 Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334B

Grape opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Sunset Warmth Glow · 5 colors

Glow #660EB4 Secondary #E86B6B Accent #F49449 Anchor #593A56 Surface #F7E7D7

Grape glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Build a working theme in the generator →

Color Lab

How #660EB4 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 32/100

Cool

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

Softness 26/100

Low

Firm and assertive — carries weight and contrast.

Depth 62/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 17/100

Very low

Clean and current — no dusty, aged cast.

Luxury 55/100

Moderate

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

Brand distinctiveness 86/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 65/100

High

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

Surface fit 12/100

Very low

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

Print safety 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #660EB4

For UI

For branding

For interior

For fashion

People also use #660EB4 with

Medium Blue Byzantine Kelly 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 9.2:1. Use

Subtle surface Use #E1CCF3 for cards and hover fills. Tint 80

Avoid beside #9E0EB4 — 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 #660EB4 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: #660EB4;
  --color-base-rgb: 102 14 180;
  --color-base-oklch: oklch(43.0% 0.222 299.5);
  --color-50: #F8F0FE;
  --color-100: #ECD8FD;
  --color-200: #D9B3F9;
  --color-300: #BB80EF;
  --color-400: #9E52E0;
  --color-500: #7F2FC6;
  --color-600: #642B96;
  --color-700: #4A256A;
  --color-800: #321C45;
  --color-900: #1F132A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  grape: {
    50: '#F8F0FE',
    100: '#ECD8FD',
    200: '#D9B3F9',
    300: '#BB80EF',
    400: '#9E52E0',
    500: '#7F2FC6',
    600: '#642B96',
    700: '#4A256A',
    800: '#321C45',
    900: '#1F132A',
  },
}

$base: #660EB4;
$base-ink: #FFFFFF;
$base-50: #F8F0FE;
$base-100: #ECD8FD;
$base-200: #D9B3F9;
$base-300: #BB80EF;
$base-400: #9E52E0;
$base-500: #7F2FC6;
$base-600: #642B96;
$base-700: #4A256A;
$base-800: #321C45;
$base-900: #1F132A;
$base-hover: #520B90;
$base-subtle: #D2B1EF;

{
    "color": {
        "base": {
            "value": "#660EB4",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F0FE",
                "type": "color"
            },
            "100": {
                "value": "#ECD8FD",
                "type": "color"
            },
            "200": {
                "value": "#D9B3F9",
                "type": "color"
            },
            "300": {
                "value": "#BB80EF",
                "type": "color"
            },
            "400": {
                "value": "#9E52E0",
                "type": "color"
            },
            "500": {
                "value": "#7F2FC6",
                "type": "color"
            },
            "600": {
                "value": "#642B96",
                "type": "color"
            },
            "700": {
                "value": "#4A256A",
                "type": "color"
            },
            "800": {
                "value": "#321C45",
                "type": "color"
            },
            "900": {
                "value": "#1F132A",
                "type": "color"
            }
        }
    }
}

Palettes built on #660EB4

Color Lab

Pairs with #660EB4

UI roles & guardrails

In real applications

Scales

Every model

Export