What color is #8159EF?

#8159EF is a light, vivid indigo. In RGB it is rgb(129, 89, 239), and in HSL hsl(256, 82%, 64%).

Is #8159EF accessible as text?

On white, #8159EF has a contrast ratio of 4.56:1 (passes WCAG AA for body text); on black it is 4.61:1 (passes). For text placed on #8159EF, use black for the best readability.

What is the closest Tailwind color to #8159EF?

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

What colors go well with #8159EF?

#8159EF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #C6EE58. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #8159EF below.

Is #8159EF good for buttons?

#8159EF works for buttons; black text has the higher contrast, so prefer it for labels.

Is #8159EF the same as CSS mediumslateblue?

No — #8159EF is not the CSS named color mediumslateblue, but mediumslateblue (#7B68EE) 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.

#8159EF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #8159EF

Not just a swatch — here's how #8159EF works with other colors. Named schemes with #8159EF in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #8159EF 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.

Tech Product Signal · 5 colors

Signal #8159EF Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #A385FF

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

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #8159EF Secondary #A69FD3 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.

Coastal Morning Lead · 5 colors

Lead #8159EF 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.

Sunset Warmth Glow · 5 colors

Glow #8159EF Secondary #E86B6E Accent #F5944B Anchor #583B57 Surface #F7E7D7

Medium Slate Blue 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 #8159EF 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 25/100

Cool

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 45/100

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 21/100

Low

Clean and current — no dusty, aged cast.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 83/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 76/100

High

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

Surface fit 16/100

Very low

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

Print safety 71/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #8159EF

For UI

For branding

For interior

For fashion

People also use #8159EF with

Cornflower Blue Heliotrope Pear Gainsboro Russian Violet

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

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 4.6:1. Use

Subtle surface Use #E8E2F7 for cards and hover fills. Tint 80

Avoid beside #B258EE — 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 #8159EF 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: #8159EF;
  --color-base-rgb: 129 89 239;
  --color-base-oklch: oklch(58.7% 0.214 290.5);
  --color-50: #F4F0FE;
  --color-100: #E2D9FC;
  --color-200: #C7B5F8;
  --color-300: #9F83ED;
  --color-400: #7955DD;
  --color-500: #5932C3;
  --color-600: #492E94;
  --color-700: #382669;
  --color-800: #271D44;
  --color-900: #19142A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-slate-blue: {
    50: '#F4F0FE',
    100: '#E2D9FC',
    200: '#C7B5F8',
    300: '#9F83ED',
    400: '#7955DD',
    500: '#5932C3',
    600: '#492E94',
    700: '#382669',
    800: '#271D44',
    900: '#19142A',
  },
}

$base: #8159EF;
$base-ink: #141310;
$base-50: #F4F0FE;
$base-100: #E2D9FC;
$base-200: #C7B5F8;
$base-300: #9F83ED;
$base-400: #7955DD;
$base-500: #5932C3;
$base-600: #492E94;
$base-700: #382669;
$base-800: #271D44;
$base-900: #19142A;
$base-hover: #531DE9;
$base-subtle: #DBD2F5;

{
    "color": {
        "base": {
            "value": "#8159EF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F0FE",
                "type": "color"
            },
            "100": {
                "value": "#E2D9FC",
                "type": "color"
            },
            "200": {
                "value": "#C7B5F8",
                "type": "color"
            },
            "300": {
                "value": "#9F83ED",
                "type": "color"
            },
            "400": {
                "value": "#7955DD",
                "type": "color"
            },
            "500": {
                "value": "#5932C3",
                "type": "color"
            },
            "600": {
                "value": "#492E94",
                "type": "color"
            },
            "700": {
                "value": "#382669",
                "type": "color"
            },
            "800": {
                "value": "#271D44",
                "type": "color"
            },
            "900": {
                "value": "#19142A",
                "type": "color"
            }
        }
    }
}