What color is #7F66EA?

#7F66EA is a light, vivid indigo. In RGB it is rgb(127, 102, 234), and in HSL hsl(251, 76%, 66%).

Is #7F66EA accessible as text?

On white, #7F66EA has a contrast ratio of 4.21:1 (fails WCAG AA for body text); on black it is 4.99:1 (passes). For text placed on #7F66EA, use black for the best readability.

What is the closest Tailwind color to #7F66EA?

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

What colors go well with #7F66EA?

#7F66EA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D2EA66. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #7F66EA below.

Is #7F66EA good for buttons?

#7F66EA works well for buttons and highlights, but use black text on #7F66EA — white text only reaches 4.21:1, below the 4.5:1 needed for normal-size labels.

Is #7F66EA the same as CSS mediumslateblue?

No — #7F66EA is not the CSS named color mediumslateblue, but mediumslateblue (#7B68EE) is the closest CSS named color.

#7F66EA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #7F66EA

Not just a swatch — here's how #7F66EA works with other colors. Named schemes with #7F66EA in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #7F66EA Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #A290FF

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 #7F66EA 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 #7F66EA Secondary #A9A5D4 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 #7F66EA 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 #7F66EA Secondary #E86A6F Accent #F5934B 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 #7F66EA 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 23/100

Cool

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

Softness 39/100

Low

Middle-weight — neither delicate nor heavy.

Depth 42/100

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 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 74/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 82/100

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 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #7F66EA

For UI

For branding

For interior

For fashion

People also use #7F66EA with

Maya Blue Orchid Pear Gainsboro Prussian Blue

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 4.4:1. Use

Subtle surface Use #E8E4F7 for cards and hover fills. Tint 80

Avoid beside #AA66EA — 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 #7F66EA 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: #7F66EA;
  --color-base-rgb: 127 102 234;
  --color-base-oklch: oklch(60.2% 0.191 288.0);
  --color-50: #F3F1FE;
  --color-100: #E0DAFB;
  --color-200: #C3B7F5;
  --color-300: #9987E9;
  --color-400: #715AD8;
  --color-500: #5037BD;
  --color-600: #433290;
  --color-700: #342966;
  --color-800: #251E43;
  --color-900: #181429;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-slate-blue: {
    50: '#F3F1FE',
    100: '#E0DAFB',
    200: '#C3B7F5',
    300: '#9987E9',
    400: '#715AD8',
    500: '#5037BD',
    600: '#433290',
    700: '#342966',
    800: '#251E43',
    900: '#181429',
  },
}

$base: #7F66EA;
$base-ink: #141310;
$base-50: #F3F1FE;
$base-100: #E0DAFB;
$base-200: #C3B7F5;
$base-300: #9987E9;
$base-400: #715AD8;
$base-500: #5037BD;
$base-600: #433290;
$base-700: #342966;
$base-800: #251E43;
$base-900: #181429;
$base-hover: #4D2BE2;
$base-subtle: #DBD6F4;

{
    "color": {
        "base": {
            "value": "#7F66EA",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F1FE",
                "type": "color"
            },
            "100": {
                "value": "#E0DAFB",
                "type": "color"
            },
            "200": {
                "value": "#C3B7F5",
                "type": "color"
            },
            "300": {
                "value": "#9987E9",
                "type": "color"
            },
            "400": {
                "value": "#715AD8",
                "type": "color"
            },
            "500": {
                "value": "#5037BD",
                "type": "color"
            },
            "600": {
                "value": "#433290",
                "type": "color"
            },
            "700": {
                "value": "#342966",
                "type": "color"
            },
            "800": {
                "value": "#251E43",
                "type": "color"
            },
            "900": {
                "value": "#181429",
                "type": "color"
            }
        }
    }
}