What color is #BB1831?

#BB1831 is a medium, vivid red. In RGB it is rgb(187, 24, 49), and in HSL hsl(351, 77%, 41%).

Is #BB1831 accessible as text?

On white, #BB1831 has a contrast ratio of 6.39:1 (passes WCAG AA for body text); on black it is 3.29:1 (fails). For text placed on #BB1831, use white for the best readability.

What is the closest Tailwind color to #BB1831?

The nearest Tailwind CSS token is rose-700 (#C70036).

What colors go well with #BB1831?

#BB1831 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #18B9A1. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #BB1831 below.

Is #BB1831 good for buttons?

#BB1831 works well for buttons and highlights, but use white text on #BB1831 — black text only reaches 3.29:1, below the 4.5:1 needed for normal-size labels.

Is #BB1831 the same as CSS firebrick?

No — #BB1831 is not the CSS named color firebrick, but firebrick (#B22222) 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.

#BB1831 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #BB1831

Not just a swatch — here's how #BB1831 works with other colors. Named schemes with #BB1831 in its natural role, and a note on why the supporting colors balance it.

Sunset Warmth Glow · 5 colors

Glow #BB1831 Secondary #E76E55 Accent #EB9B36 Anchor #5C3951 Surface #F5E8D6

Cardinal 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 #BB1831 Anchor #3A2A21 Surface #F1E2D0 Accent #979664 Secondary #3C3833

Cardinal 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 #BB1831 Secondary #7C4928 Surface #EAD9C0 Accent #43503A Anchor #5A222F

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

Berry & Cream Lead · 5 colors

Lead #BB1831 Surface #F3E6D6 Anchor #5F2037 Accent #E6C2C2 Secondary #332B2E

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #BB1831 Secondary #B57F7D Support #9B9087 Ink #17140F

Cardinal 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 Cardinal carrying the quiet middle.

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Color Lab

How #BB1831 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 94/100

Warm

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 52/100

Moderate

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

Naturalness 32/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 40/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 51/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 74/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 89/100

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 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #BB1831

For UI

For branding

For interior

For fashion

People also use #BB1831 with

Byzantine Ginger Light Sea Green Gainsboro Taupe

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 #F2D0D5 for cards and hover fills. Tint 80

Avoid beside #B93618 — 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 #BB1831 at work across the surfaces designers actually ship.

Website / UI

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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: #BB1831;
  --color-base-rgb: 187 24 49;
  --color-base-oklch: oklch(50.9% 0.193 21.1);
  --color-50: #FEF1F3;
  --color-100: #FBDADF;
  --color-200: #F5B7C0;
  --color-300: #E98695;
  --color-400: #D9596C;
  --color-500: #BE374B;
  --color-600: #91313F;
  --color-700: #662832;
  --color-800: #431E23;
  --color-900: #291417;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cardinal: {
    50: '#FEF1F3',
    100: '#FBDADF',
    200: '#F5B7C0',
    300: '#E98695',
    400: '#D9596C',
    500: '#BE374B',
    600: '#91313F',
    700: '#662832',
    800: '#431E23',
    900: '#291417',
  },
}

$base: #BB1831;
$base-ink: #FFFFFF;
$base-50: #FEF1F3;
$base-100: #FBDADF;
$base-200: #F5B7C0;
$base-300: #E98695;
$base-400: #D9596C;
$base-500: #BE374B;
$base-600: #91313F;
$base-700: #662832;
$base-800: #431E23;
$base-900: #291417;
$base-hover: #941327;
$base-subtle: #ECB7BF;

{
    "color": {
        "base": {
            "value": "#BB1831",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF1F3",
                "type": "color"
            },
            "100": {
                "value": "#FBDADF",
                "type": "color"
            },
            "200": {
                "value": "#F5B7C0",
                "type": "color"
            },
            "300": {
                "value": "#E98695",
                "type": "color"
            },
            "400": {
                "value": "#D9596C",
                "type": "color"
            },
            "500": {
                "value": "#BE374B",
                "type": "color"
            },
            "600": {
                "value": "#91313F",
                "type": "color"
            },
            "700": {
                "value": "#662832",
                "type": "color"
            },
            "800": {
                "value": "#431E23",
                "type": "color"
            },
            "900": {
                "value": "#291417",
                "type": "color"
            }
        }
    }
}

Palettes built on #BB1831

Color Lab

Pairs with #BB1831

UI roles & guardrails

In real applications

Scales

Every model

Export