What color is #654BBB?

#654BBB is a medium indigo. In RGB it is rgb(101, 75, 187), and in HSL hsl(254, 45%, 51%).

Is #654BBB accessible as text?

On white, #654BBB has a contrast ratio of 6.41:1 (passes WCAG AA for body text); on black it is 3.28:1 (fails). For text placed on #654BBB, use white for the best readability.

What is the closest Tailwind color to #654BBB?

The nearest Tailwind CSS token is purple-800 (#6E11B0).

What colors go well with #654BBB?

#654BBB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A0BA4A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #654BBB below.

Is #654BBB good for buttons?

#654BBB works well for buttons and highlights, but use white text on #654BBB — black text only reaches 3.28:1, below the 4.5:1 needed for normal-size labels.

Is #654BBB the same as CSS slateblue?

No — #654BBB is not the CSS named color slateblue, but slateblue (#6A5ACD) is the closest CSS named color.

#654BBB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #654BBB

Not just a swatch — here's how #654BBB works with other colors. Named schemes with #654BBB in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #654BBB Accent #A5C4C3 Surface #E9D6BF Secondary #9AA0A1 Anchor #22334A

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 #654BBB Secondary #7E4633 Surface #EDD8C2 Accent #355248 Anchor #582238

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 #654BBB Anchor #3B2923 Surface #F3E1D2 Accent #749F7D Secondary #3C3734

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 #654BBB Surface #F5E5D7 Anchor #5C2141 Accent #E5C2C8 Secondary #332B2F

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 #654BBB Secondary #8B87AF Support #9D9088 Ink #18140F

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 Slate Blue carrying the quiet middle.

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Color Lab

How #654BBB 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 52/100

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 37/100

Low

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 46/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 95/100

Very high

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

Surface fit 8/100

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 #654BBB

For UI

For branding

For interior

For fashion

People also use #654BBB with

Glaucous Dark Orchid Pistachio 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 6.4:1. Use

Subtle surface Use #E2DEEE for cards and hover fills. Tint 80

Avoid beside #8A4ABA — 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 #654BBB 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: #654BBB;
  --color-base-rgb: 101 75 187;
  --color-base-oklch: oklch(50.1% 0.169 289.6);
  --color-50: #F5F4FB;
  --color-100: #E5E1F4;
  --color-200: #CCC4E8;
  --color-300: #A89BD5;
  --color-400: #8574BE;
  --color-500: #6553A2;
  --color-600: #52457D;
  --color-700: #3E355A;
  --color-800: #2B263B;
  --color-900: #1B1925;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  slate-blue: {
    50: '#F5F4FB',
    100: '#E5E1F4',
    200: '#CCC4E8',
    300: '#A89BD5',
    400: '#8574BE',
    500: '#6553A2',
    600: '#52457D',
    700: '#3E355A',
    800: '#2B263B',
    900: '#1B1925',
  },
}

$base: #654BBB;
$base-ink: #FFFFFF;
$base-50: #F5F4FB;
$base-100: #E5E1F4;
$base-200: #CCC4E8;
$base-300: #A89BD5;
$base-400: #8574BE;
$base-500: #6553A2;
$base-600: #52457D;
$base-700: #3E355A;
$base-800: #2B263B;
$base-900: #1B1925;
$base-hover: #4F3997;
$base-subtle: #D3CDE6;

{
    "color": {
        "base": {
            "value": "#654BBB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E5E1F4",
                "type": "color"
            },
            "200": {
                "value": "#CCC4E8",
                "type": "color"
            },
            "300": {
                "value": "#A89BD5",
                "type": "color"
            },
            "400": {
                "value": "#8574BE",
                "type": "color"
            },
            "500": {
                "value": "#6553A2",
                "type": "color"
            },
            "600": {
                "value": "#52457D",
                "type": "color"
            },
            "700": {
                "value": "#3E355A",
                "type": "color"
            },
            "800": {
                "value": "#2B263B",
                "type": "color"
            },
            "900": {
                "value": "#1B1925",
                "type": "color"
            }
        }
    }
}

Palettes built on #654BBB

Color Lab

Pairs with #654BBB

UI roles & guardrails

In real applications

Scales

Every model

Export