What color is #CB03BB?

#CB03BB is a medium, vivid purple. In RGB it is rgb(203, 3, 187), and in HSL hsl(305, 97%, 40%).

Is #CB03BB accessible as text?

On white, #CB03BB has a contrast ratio of 4.92:1 (passes WCAG AA for body text); on black it is 4.27:1 (fails). For text placed on #CB03BB, use white for the best readability.

What is the closest Tailwind color to #CB03BB?

The nearest Tailwind CSS token is fuchsia-600 (#C800DE).

What colors go well with #CB03BB?

#CB03BB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #03C914. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #CB03BB below.

Is #CB03BB good for buttons?

#CB03BB works well for buttons and highlights, but use white text on #CB03BB — black text only reaches 4.27:1, below the 4.5:1 needed for normal-size labels.

Is #CB03BB the same as CSS mediumvioletred?

No — #CB03BB 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.

#CB03BB Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #CB03BB

Not just a swatch — here's how #CB03BB works with other colors. Named schemes with #CB03BB in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #CB03BB Surface #F4E6D7 Anchor #5D203D 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 #CB03BB Secondary #E86C62 Accent #F19741 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 #CB03BB Anchor #3B2922 Surface #F2E2D1 Accent #9D9462 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 #CB03BB Secondary #7D472E 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 #CB03BB Secondary #C890BE 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 #CB03BB 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 61/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 47/100

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 6/100

Very low

Clean and current — no dusty, aged cast.

Luxury 41/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 100/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 53/100

Moderate

Workable accent with care around contrast.

Surface fit 15/100

Very low

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

Print safety 71/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #CB03BB

For UI

For branding

For interior

For fashion

People also use #CB03BB with

Violet Cardinal Kelly 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 4.9:1. Use

Subtle surface Use #F6CBF2 for cards and hover fills. Tint 80

Avoid beside #C90376 — 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 #CB03BB 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: #CB03BB;
  --color-base-rgb: 203 3 187;
  --color-base-oklch: oklch(58.2% 0.261 332.8);
  --color-50: #FEF0FD;
  --color-100: #FDD8FA;
  --color-200: #FCB1F5;
  --color-300: #F679EC;
  --color-400: #E949DC;
  --color-500: #D025C2;
  --color-600: #9D2593;
  --color-700: #6F2068;
  --color-800: #481944;
  --color-900: #2C112A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  byzantine: {
    50: '#FEF0FD',
    100: '#FDD8FA',
    200: '#FCB1F5',
    300: '#F679EC',
    400: '#E949DC',
    500: '#D025C2',
    600: '#9D2593',
    700: '#6F2068',
    800: '#481944',
    900: '#2C112A',
  },
}

$base: #CB03BB;
$base-ink: #FFFFFF;
$base-50: #FEF0FD;
$base-100: #FDD8FA;
$base-200: #FCB1F5;
$base-300: #F679EC;
$base-400: #E949DC;
$base-500: #D025C2;
$base-600: #9D2593;
$base-700: #6F2068;
$base-800: #481944;
$base-900: #2C112A;
$base-hover: #A10294;
$base-subtle: #F3AFED;

{
    "color": {
        "base": {
            "value": "#CB03BB",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF0FD",
                "type": "color"
            },
            "100": {
                "value": "#FDD8FA",
                "type": "color"
            },
            "200": {
                "value": "#FCB1F5",
                "type": "color"
            },
            "300": {
                "value": "#F679EC",
                "type": "color"
            },
            "400": {
                "value": "#E949DC",
                "type": "color"
            },
            "500": {
                "value": "#D025C2",
                "type": "color"
            },
            "600": {
                "value": "#9D2593",
                "type": "color"
            },
            "700": {
                "value": "#6F2068",
                "type": "color"
            },
            "800": {
                "value": "#481944",
                "type": "color"
            },
            "900": {
                "value": "#2C112A",
                "type": "color"
            }
        }
    }
}

Palettes built on #CB03BB

Color Lab

Pairs with #CB03BB

UI roles & guardrails

In real applications

Scales

Every model

Export