What color is #B01403?

#B01403 is a dark, vivid red. In RGB it is rgb(176, 20, 3), and in HSL hsl(6, 97%, 35%).

Is #B01403 accessible as text?

On white, #B01403 has a contrast ratio of 7.12:1 (passes WCAG AA for body text); on black it is 2.95:1 (fails). For text placed on #B01403, use white for the best readability.

What is the closest Tailwind color to #B01403?

The nearest Tailwind CSS token is red-700 (#C10007).

What colors go well with #B01403?

#B01403 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #039FB0. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #B01403 below.

Is #B01403 good for buttons?

#B01403 works well for buttons and highlights, but use white text on #B01403 — black text only reaches 2.95:1, below the 4.5:1 needed for normal-size labels.

Is #B01403 the same as CSS firebrick?

No — #B01403 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.

#B01403 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #B01403

Not just a swatch — here's how #B01403 works with other colors. Named schemes with #B01403 in its natural role, and a note on why the supporting colors balance it.

Sunset Warmth Glow · 5 colors

Glow #B01403 Secondary #E76F52 Accent #EA9C34 Anchor #5C3950 Surface #F4E8D6

Firebrick 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 #B01403 Anchor #3A2A21 Surface #F0E2D0 Accent #969664 Secondary #3B3833

Firebrick 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 #B01403 Secondary #7B4927 Surface #EAD9C0 Accent #43503A Anchor #5A222E

Firebrick 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 #B01403 Surface #F3E6D6 Anchor #5F2036 Accent #E6C2C1 Secondary #332B2D

Firebrick 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 #B01403 Secondary #AB786F Support #9B9186 Ink #17140F

Firebrick 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 Firebrick carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #B01403 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 97/100

Warm

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 55/100

Moderate

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

Naturalness 44/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 53/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 88/100

Very high

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

Surface fit 9/100

Very low

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

Print safety 80/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #B01403

For UI

For branding

For interior

For fashion

People also use #B01403 with

Ruby Red Copper Dark Cyan Gainsboro Espresso

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

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 7.1:1. Use

Subtle surface Use #F5CBC7 for cards and hover fills. Tint 80

Avoid beside #B04E03 — 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 #B01403 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: #B01403;
  --color-base-rgb: 176 20 3;
  --color-base-oklch: oklch(48.2% 0.188 30.5);
  --color-50: #FEF2F0;
  --color-100: #FDDCD8;
  --color-200: #FCB8B1;
  --color-300: #F68679;
  --color-400: #E95949;
  --color-500: #D03625;
  --color-600: #9D3125;
  --color-700: #6F2820;
  --color-800: #481E19;
  --color-900: #2C1411;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  firebrick: {
    50: '#FEF2F0',
    100: '#FDDCD8',
    200: '#FCB8B1',
    300: '#F68679',
    400: '#E95949',
    500: '#D03625',
    600: '#9D3125',
    700: '#6F2820',
    800: '#481E19',
    900: '#2C1411',
  },
}

$base: #B01403;
$base-ink: #FFFFFF;
$base-50: #FEF2F0;
$base-100: #FDDCD8;
$base-200: #FCB8B1;
$base-300: #F68679;
$base-400: #E95949;
$base-500: #D03625;
$base-600: #9D3125;
$base-700: #6F2820;
$base-800: #481E19;
$base-900: #2C1411;
$base-hover: #8D1002;
$base-subtle: #F2B0A9;

{
    "color": {
        "base": {
            "value": "#B01403",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF2F0",
                "type": "color"
            },
            "100": {
                "value": "#FDDCD8",
                "type": "color"
            },
            "200": {
                "value": "#FCB8B1",
                "type": "color"
            },
            "300": {
                "value": "#F68679",
                "type": "color"
            },
            "400": {
                "value": "#E95949",
                "type": "color"
            },
            "500": {
                "value": "#D03625",
                "type": "color"
            },
            "600": {
                "value": "#9D3125",
                "type": "color"
            },
            "700": {
                "value": "#6F2820",
                "type": "color"
            },
            "800": {
                "value": "#481E19",
                "type": "color"
            },
            "900": {
                "value": "#2C1411",
                "type": "color"
            }
        }
    }
}

Palettes built on #B01403

Color Lab

Pairs with #B01403

UI roles & guardrails

In real applications

Scales

Every model

Export