What color is #686AFF?

#686AFF is a light, vivid blue-violet. In RGB it is rgb(104, 106, 255), and in HSL hsl(239, 100%, 70%).

Is #686AFF accessible as text?

On white, #686AFF has a contrast ratio of 4.12:1 (fails WCAG AA for body text); on black it is 5.09:1 (passes). For text placed on #686AFF, use black for the best readability.

What is the closest Tailwind color to #686AFF?

The nearest Tailwind CSS token is indigo-500 (#615FFF).

What colors go well with #686AFF?

#686AFF pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #FFFC66. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #686AFF below.

Is #686AFF good for buttons?

#686AFF works well for buttons and highlights, but use black text on #686AFF — white text only reaches 4.12:1, below the 4.5:1 needed for normal-size labels.

Is #686AFF the same as CSS mediumslateblue?

No — #686AFF is not the CSS named color mediumslateblue, but mediumslateblue (#7B68EE) is the closest CSS named color.

#686AFF Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #686AFF

Not just a swatch — here's how #686AFF works with other colors. Named schemes with #686AFF in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #686AFF Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #8B95FF

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.

Berry & Cream Lead · 5 colors

Lead #686AFF Surface #F6E5D8 Anchor #5B2142 Accent #E5C2C9 Secondary #322B2F

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 #686AFF Secondary #A0A9DD 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 #686AFF Accent #A5C4C2 Surface #EAD5BF Secondary #9AA0A1 Anchor #22344A

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 #686AFF Secondary #E86A71 Accent #F6934E 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 #686AFF 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 16/100

Cool

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

Softness 36/100

Low

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 19/100

Very low

Clean and current — no dusty, aged cast.

Luxury 41/100

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 72/100

High

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

Surface fit 18/100

Very low

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

Print safety 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #686AFF

For UI

For branding

For interior

For fashion

People also use #686AFF with

Light Sky Blue Medium Orchid Flax 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 4.5:1. Use

Subtle surface Use #E5E5FB for cards and hover fills. Tint 80

Avoid beside #9666FF — 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 #686AFF at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #686AFF;
  --color-base-rgb: 104 106 255;
  --color-base-oklch: oklch(60.6% 0.216 277.2);
  --color-50: #F0F1FE;
  --color-100: #D8D8FD;
  --color-200: #B1B2FC;
  --color-300: #7779F8;
  --color-400: #4649EC;
  --color-500: #2225D2;
  --color-600: #23259F;
  --color-700: #1F2070;
  --color-800: #181948;
  --color-900: #11122C;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-slate-blue: {
    50: '#F0F1FE',
    100: '#D8D8FD',
    200: '#B1B2FC',
    300: '#7779F8',
    400: '#4649EC',
    500: '#2225D2',
    600: '#23259F',
    700: '#1F2070',
    800: '#181948',
    900: '#11122C',
  },
}

$base: #686AFF;
$base-ink: #141310;
$base-50: #F0F1FE;
$base-100: #D8D8FD;
$base-200: #B1B2FC;
$base-300: #7779F8;
$base-400: #4649EC;
$base-500: #2225D2;
$base-600: #23259F;
$base-700: #1F2070;
$base-800: #181948;
$base-900: #11122C;
$base-hover: #1F22FF;
$base-subtle: #D7D7F9;

{
    "color": {
        "base": {
            "value": "#686AFF",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F1FE",
                "type": "color"
            },
            "100": {
                "value": "#D8D8FD",
                "type": "color"
            },
            "200": {
                "value": "#B1B2FC",
                "type": "color"
            },
            "300": {
                "value": "#7779F8",
                "type": "color"
            },
            "400": {
                "value": "#4649EC",
                "type": "color"
            },
            "500": {
                "value": "#2225D2",
                "type": "color"
            },
            "600": {
                "value": "#23259F",
                "type": "color"
            },
            "700": {
                "value": "#1F2070",
                "type": "color"
            },
            "800": {
                "value": "#181948",
                "type": "color"
            },
            "900": {
                "value": "#11122C",
                "type": "color"
            }
        }
    }
}

Palettes built on #686AFF

Color Lab

Pairs with #686AFF

UI roles & guardrails

In real applications

Scales

Every model

Export