What color is #856CE9?

#856CE9 is a light, vivid indigo. In RGB it is rgb(133, 108, 233), and in HSL hsl(252, 74%, 67%).

Is #856CE9 accessible as text?

On white, #856CE9 has a contrast ratio of 3.95:1 (fails WCAG AA for body text); on black it is 5.32:1 (passes). For text placed on #856CE9, use black for the best readability.

What is the closest Tailwind color to #856CE9?

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

What colors go well with #856CE9?

#856CE9 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D0E96D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #856CE9 below.

Is #856CE9 good for buttons?

#856CE9 works well for buttons and highlights, but use black text on #856CE9 — white text only reaches 3.95:1, below the 4.5:1 needed for normal-size labels.

Is #856CE9 the same as CSS mediumslateblue?

No — #856CE9 is not the CSS named color mediumslateblue, but mediumslateblue (#7B68EE) is the closest CSS named color.

#856CE9 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #856CE9

Not just a swatch — here's how #856CE9 works with other colors. Named schemes with #856CE9 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #856CE9 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 #856CE9 Secondary #7E4633 Surface #EDD8C2 Accent #355248 Anchor #582238

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 #856CE9 Anchor #3B2923 Surface #F3E1D2 Accent #749F7C 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.

Berry & Cream Lead · 5 colors

Lead #856CE9 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #856CE9 Secondary #AEAAD6 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 #856CE9 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 24/100

Cool

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 41/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 82/100

Very high

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

Surface fit 19/100

Very low

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

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #856CE9

For UI

For branding

For interior

For fashion

People also use #856CE9 with

Maya Blue Orchid Pear Gainsboro Prussian Blue

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

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 4.7:1. Use

Subtle surface Use #E9E5F7 for cards and hover fills. Tint 80

Avoid beside #AF6DE9 — 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 #856CE9 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: #856CE9;
  --color-base-rgb: 133 108 233;
  --color-base-oklch: oklch(61.6% 0.181 289.2);
  --color-50: #F4F1FE;
  --color-100: #E1DBFB;
  --color-200: #C4B8F4;
  --color-300: #9B88E7;
  --color-400: #745CD6;
  --color-500: #5339BC;
  --color-600: #45338F;
  --color-700: #352A65;
  --color-800: #261F42;
  --color-900: #191529;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-slate-blue: {
    50: '#F4F1FE',
    100: '#E1DBFB',
    200: '#C4B8F4',
    300: '#9B88E7',
    400: '#745CD6',
    500: '#5339BC',
    600: '#45338F',
    700: '#352A65',
    800: '#261F42',
    900: '#191529',
  },
}

$base: #856CE9;
$base-ink: #141310;
$base-50: #F4F1FE;
$base-100: #E1DBFB;
$base-200: #C4B8F4;
$base-300: #9B88E7;
$base-400: #745CD6;
$base-500: #5339BC;
$base-600: #45338F;
$base-700: #352A65;
$base-800: #261F42;
$base-900: #191529;
$base-hover: #5431E0;
$base-subtle: #DDD8F4;

{
    "color": {
        "base": {
            "value": "#856CE9",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F1FE",
                "type": "color"
            },
            "100": {
                "value": "#E1DBFB",
                "type": "color"
            },
            "200": {
                "value": "#C4B8F4",
                "type": "color"
            },
            "300": {
                "value": "#9B88E7",
                "type": "color"
            },
            "400": {
                "value": "#745CD6",
                "type": "color"
            },
            "500": {
                "value": "#5339BC",
                "type": "color"
            },
            "600": {
                "value": "#45338F",
                "type": "color"
            },
            "700": {
                "value": "#352A65",
                "type": "color"
            },
            "800": {
                "value": "#261F42",
                "type": "color"
            },
            "900": {
                "value": "#191529",
                "type": "color"
            }
        }
    }
}

Palettes built on #856CE9

Color Lab

Pairs with #856CE9

UI roles & guardrails

In real applications

Scales

Every model

Export