What color is #66487F?

#66487F is a dark, muted violet. In RGB it is rgb(102, 72, 127), and in HSL hsl(273, 28%, 39%).

Is #66487F accessible as text?

On white, #66487F has a contrast ratio of 7.50:1 (passes WCAG AA for body text); on black it is 2.80:1 (fails). For text placed on #66487F, use white for the best readability.

What is the closest Tailwind color to #66487F?

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

What colors go well with #66487F?

#66487F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #617F48. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #66487F below.

Is #66487F good for buttons?

#66487F works well for buttons and highlights, but use white text on #66487F — black text only reaches 2.80:1, below the 4.5:1 needed for normal-size labels.

Is #66487F the same as CSS darkslateblue?

No — #66487F 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.

#66487F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #66487F

Not just a swatch — here's how #66487F works with other colors. Named schemes with #66487F in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #66487F Surface #F5E6D7 Anchor #5C213F Accent #E5C2C7 Secondary #332B2F

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

Coastal Morning Lead · 5 colors

Lead #66487F Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334B

Ultra Violet 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 #66487F Secondary #7E4630 Surface #EDD8C1 Accent #355249 Anchor #592236

Ultra Violet 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 #66487F Anchor #3B2923 Surface #F2E1D1 Accent #9F9361 Secondary #3C3734

Ultra Violet 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 #66487F Secondary #857B8F Support #9C9088 Ink #18140F

Ultra Violet 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 Ultra Violet carrying the quiet middle.

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Color Lab

How #66487F 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 44/100

Neutral

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

Softness 40/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 54/100

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 64/100

High

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

Luxury 60/100

Moderate

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

Brand distinctiveness 25/100

Low

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

UI accent fit 83/100

Very high

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

Surface fit 27/100

Low

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

Print safety 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #66487F

For UI

For branding

For interior

For fashion

People also use #66487F with

Ultra Violet Plum Olive 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 7.5:1. Use

Subtle surface Use #E1DAE6 for cards and hover fills. Tint 80

Avoid beside #79487F — 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 #66487F 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: #66487F;
  --color-base-rgb: 102 72 127;
  --color-base-oklch: oklch(45.8% 0.093 308.2);
  --color-50: #F8F5FA;
  --color-100: #EBE5F1;
  --color-200: #D7CBE2;
  --color-300: #B9A6CA;
  --color-400: #9B82B0;
  --color-500: #7D6293;
  --color-600: #634F72;
  --color-700: #493C53;
  --color-800: #312A37;
  --color-900: #1F1B22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  ultra-violet: {
    50: '#F8F5FA',
    100: '#EBE5F1',
    200: '#D7CBE2',
    300: '#B9A6CA',
    400: '#9B82B0',
    500: '#7D6293',
    600: '#634F72',
    700: '#493C53',
    800: '#312A37',
    900: '#1F1B22',
  },
}

$base: #66487F;
$base-ink: #FFFFFF;
$base-50: #F8F5FA;
$base-100: #EBE5F1;
$base-200: #D7CBE2;
$base-300: #B9A6CA;
$base-400: #9B82B0;
$base-500: #7D6293;
$base-600: #634F72;
$base-700: #493C53;
$base-800: #312A37;
$base-900: #1F1B22;
$base-hover: #523966;
$base-subtle: #D1C6DA;

{
    "color": {
        "base": {
            "value": "#66487F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F5FA",
                "type": "color"
            },
            "100": {
                "value": "#EBE5F1",
                "type": "color"
            },
            "200": {
                "value": "#D7CBE2",
                "type": "color"
            },
            "300": {
                "value": "#B9A6CA",
                "type": "color"
            },
            "400": {
                "value": "#9B82B0",
                "type": "color"
            },
            "500": {
                "value": "#7D6293",
                "type": "color"
            },
            "600": {
                "value": "#634F72",
                "type": "color"
            },
            "700": {
                "value": "#493C53",
                "type": "color"
            },
            "800": {
                "value": "#312A37",
                "type": "color"
            },
            "900": {
                "value": "#1F1B22",
                "type": "color"
            }
        }
    }
}

Palettes built on #66487F

Color Lab

Pairs with #66487F

UI roles & guardrails

In real applications

Scales

Every model

Export