What color is #B540A4?

#B540A4 is a medium purple. In RGB it is rgb(181, 64, 164), and in HSL hsl(309, 48%, 48%).

Is #B540A4 accessible as text?

On white, #B540A4 has a contrast ratio of 4.96:1 (passes WCAG AA for body text); on black it is 4.23:1 (fails). For text placed on #B540A4, use white for the best readability.

What is the closest Tailwind color to #B540A4?

The nearest Tailwind CSS token is fuchsia-700 (#A800B7).

What colors go well with #B540A4?

#B540A4 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #40B551. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #B540A4 below.

Is #B540A4 good for buttons?

#B540A4 works well for buttons and highlights, but use white text on #B540A4 — black text only reaches 4.23:1, below the 4.5:1 needed for normal-size labels.

Is #B540A4 the same as CSS mediumvioletred?

No — #B540A4 is not the CSS named color mediumvioletred, but mediumvioletred (#C71585) 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.

#B540A4 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #B540A4

Not just a swatch — here's how #B540A4 works with other colors. Named schemes with #B540A4 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #B540A4 Surface #F4E6D7 Anchor #5D203C Accent #E6C2C5 Secondary #332B2E

Byzantine sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Sunset Warmth Glow · 5 colors

Glow #B540A4 Secondary #E86C62 Accent #F09741 Anchor #5A3A54 Surface #F6E8D7

Byzantine glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Modern Café Dominant · 5 colors

Dominant #B540A4 Anchor #3B2922 Surface #F2E2D1 Accent #9C9462 Secondary #3C3833

Byzantine 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.

Vintage Leather Lead · 5 colors

Lead #B540A4 Secondary #7D472D Surface #ECD8C1 Accent #464F38 Anchor #592233

Byzantine plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #B540A4 Secondary #BC92B3 Support #9C9087 Ink #18140F

Byzantine 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 Byzantine carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #B540A4 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 62/100

Warm

Reads warm and advancing — inviting, energetic, draws the eye forward.

Softness 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 46/100

Moderate

Mid depth — usable as an accent or a muted ground.

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 46/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 89/100

Very high

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

Surface fit 14/100

Very low

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

Print safety 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #B540A4

For UI

For branding

For interior

For fashion

People also use #B540A4 with

Amethyst Viva Magenta Medium Sea Green Gainsboro Eggplant

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 5.0:1. Use

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

Avoid beside #B5407C — 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 #B540A4 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: #B540A4;
  --color-base-rgb: 181 64 164;
  --color-base-oklch: oklch(56.9% 0.189 334.0);
  --color-50: #FBF3FA;
  --color-100: #F5E0F2;
  --color-200: #EAC3E4;
  --color-300: #D799CD;
  --color-400: #C171B5;
  --color-500: #A55098;
  --color-600: #7F4376;
  --color-700: #5B3455;
  --color-800: #3C2539;
  --color-900: #251823;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  byzantine: {
    50: '#FBF3FA',
    100: '#F5E0F2',
    200: '#EAC3E4',
    300: '#D799CD',
    400: '#C171B5',
    500: '#A55098',
    600: '#7F4376',
    700: '#5B3455',
    800: '#3C2539',
    900: '#251823',
  },
}

$base: #B540A4;
$base-ink: #FFFFFF;
$base-50: #FBF3FA;
$base-100: #F5E0F2;
$base-200: #EAC3E4;
$base-300: #D799CD;
$base-400: #C171B5;
$base-500: #A55098;
$base-600: #7F4376;
$base-700: #5B3455;
$base-800: #3C2539;
$base-900: #251823;
$base-hover: #913383;
$base-subtle: #E6C9E1;

{
    "color": {
        "base": {
            "value": "#B540A4",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FBF3FA",
                "type": "color"
            },
            "100": {
                "value": "#F5E0F2",
                "type": "color"
            },
            "200": {
                "value": "#EAC3E4",
                "type": "color"
            },
            "300": {
                "value": "#D799CD",
                "type": "color"
            },
            "400": {
                "value": "#C171B5",
                "type": "color"
            },
            "500": {
                "value": "#A55098",
                "type": "color"
            },
            "600": {
                "value": "#7F4376",
                "type": "color"
            },
            "700": {
                "value": "#5B3455",
                "type": "color"
            },
            "800": {
                "value": "#3C2539",
                "type": "color"
            },
            "900": {
                "value": "#251823",
                "type": "color"
            }
        }
    }
}