What color is #8366DB?

#8366DB is a light, soft indigo. In RGB it is rgb(131, 102, 219), and in HSL hsl(255, 62%, 63%).

Is #8366DB accessible as text?

On white, #8366DB has a contrast ratio of 4.30:1 (fails WCAG AA for body text); on black it is 4.89:1 (passes). For text placed on #8366DB, use black for the best readability.

What is the closest Tailwind color to #8366DB?

The nearest Tailwind CSS token is violet-500 (#8E51FF).

What colors go well with #8366DB?

#8366DB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BEDB66. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #8366DB below.

Is #8366DB good for buttons?

#8366DB works well for buttons and highlights, but use black text on #8366DB — white text only reaches 4.30:1, below the 4.5:1 needed for normal-size labels.

Is #8366DB the same as CSS mediumslateblue?

No — #8366DB is not the CSS named color mediumslateblue, but mediumslateblue (#7B68EE) is the closest CSS named color.

#8366DB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #8366DB

Not just a swatch — here's how #8366DB works with other colors. Named schemes with #8366DB in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #8366DB Surface #F5E5D7 Anchor #5C2141 Accent #E5C2C8 Secondary #332B2F

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

Coastal Morning Lead · 5 colors

Lead #8366DB Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #22334A

Medium Slate Blue 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 #8366DB Secondary #7E4632 Surface #EDD8C2 Accent #355248 Anchor #582237

Medium Slate Blue 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 #8366DB Anchor #3B2923 Surface #F3E1D1 Accent #749F7D Secondary #3C3734

Medium Slate Blue 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 #8366DB Secondary #A9A3CD Support #9D9088 Ink #18140F

Medium Slate Blue 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 Medium Slate Blue carrying the quiet middle.

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Color Lab

How #8366DB 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 26/100

Cool

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 43/100

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 45/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 46/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 89/100

Very high

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

Surface fit 17/100

Very low

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

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #8366DB

For UI

For branding

For interior

For fashion

People also use #8366DB with

Iceberg Medium Orchid Pear Gainsboro Russian Violet

UI roles & guardrails

Primary action Too mid-tone for a filled button — darken for the fill. AA Large

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.3:1. Use

Subtle surface Use #E8E4F5 for cards and hover fills. Tint 80

Avoid beside #AA66DB — 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 #8366DB 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: #8366DB;
  --color-base-rgb: 131 102 219;
  --color-base-oklch: oklch(59.5% 0.172 291.7);
  --color-50: #F5F2FD;
  --color-100: #E4DDF8;
  --color-200: #CABDEF;
  --color-300: #A490E0;
  --color-400: #7F66CC;
  --color-500: #5F44B1;
  --color-600: #4E3A87;
  --color-700: #3B2E60;
  --color-800: #29223F;
  --color-900: #1A1627;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-slate-blue: {
    50: '#F5F2FD',
    100: '#E4DDF8',
    200: '#CABDEF',
    300: '#A490E0',
    400: '#7F66CC',
    500: '#5F44B1',
    600: '#4E3A87',
    700: '#3B2E60',
    800: '#29223F',
    900: '#1A1627',
  },
}

$base: #8366DB;
$base-ink: #141310;
$base-50: #F5F2FD;
$base-100: #E4DDF8;
$base-200: #CABDEF;
$base-300: #A490E0;
$base-400: #7F66CC;
$base-500: #5F44B1;
$base-600: #4E3A87;
$base-700: #3B2E60;
$base-800: #29223F;
$base-900: #1A1627;
$base-hover: #5932CF;
$base-subtle: #DCD5F0;

{
    "color": {
        "base": {
            "value": "#8366DB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F2FD",
                "type": "color"
            },
            "100": {
                "value": "#E4DDF8",
                "type": "color"
            },
            "200": {
                "value": "#CABDEF",
                "type": "color"
            },
            "300": {
                "value": "#A490E0",
                "type": "color"
            },
            "400": {
                "value": "#7F66CC",
                "type": "color"
            },
            "500": {
                "value": "#5F44B1",
                "type": "color"
            },
            "600": {
                "value": "#4E3A87",
                "type": "color"
            },
            "700": {
                "value": "#3B2E60",
                "type": "color"
            },
            "800": {
                "value": "#29223F",
                "type": "color"
            },
            "900": {
                "value": "#1A1627",
                "type": "color"
            }
        }
    }
}

Palettes built on #8366DB

Color Lab

Pairs with #8366DB

UI roles & guardrails

In real applications

Scales

Every model

Export