What color is #C40010?

#C40010 is a dark, vivid red. In RGB it is rgb(196, 0, 16), and in HSL hsl(355, 100%, 38%).

Is #C40010 accessible as text?

On white, #C40010 has a contrast ratio of 6.26:1 (passes WCAG AA for body text); on black it is 3.35:1 (fails). For text placed on #C40010, use white for the best readability.

What is the closest Tailwind color to #C40010?

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

What colors go well with #C40010?

#C40010 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #00C2B2. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #C40010 below.

Is #C40010 good for buttons?

#C40010 works well for buttons and highlights, but use white text on #C40010 — black text only reaches 3.35:1, below the 4.5:1 needed for normal-size labels.

Is #C40010 the same as CSS firebrick?

No — #C40010 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.

#C40010 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #C40010

Not just a swatch — here's how #C40010 works with other colors. Named schemes with #C40010 in its natural role, and a note on why the supporting colors balance it.

Sunset Warmth Glow · 5 colors

Glow #C40010 Secondary #E76F53 Accent #EA9C35 Anchor #5C3951 Surface #F5E8D6

Fire Engine Red 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 #C40010 Anchor #3A2A21 Surface #F0E2D0 Accent #969664 Secondary #3C3833

Fire Engine Red 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 #C40010 Secondary #7B4927 Surface #EAD9C0 Accent #43503A Anchor #5A222E

Fire Engine Red 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 #C40010 Surface #F3E6D6 Anchor #5F2037 Accent #E6C2C1 Secondary #332B2E

Fire Engine Red 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 #C40010 Secondary #BA8078 Support #9B9186 Ink #17140F

Fire Engine Red 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 Fire Engine Red carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #C40010 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 96/100

Warm

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

Softness 32/100

Low

Firm and assertive — carries weight and contrast.

Depth 52/100

Moderate

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

Naturalness 24/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 32/100

Low

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 81/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 82/100

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 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #C40010

For UI

For branding

For interior

For fashion

People also use #C40010 with

Deep Pink Tawny Persian Green Gainsboro Espresso

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 6.3:1. Use

Subtle surface Use #F6C9CC for cards and hover fills. Tint 80

Avoid beside #C23000 — 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 #C40010 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: #C40010;
  --color-base-rgb: 196 0 16;
  --color-base-oklch: oklch(51.6% 0.211 27.6);
  --color-50: #FEF0F1;
  --color-100: #FDD8DB;
  --color-200: #FCB1B7;
  --color-300: #F87782;
  --color-400: #EC4654;
  --color-500: #D22231;
  --color-600: #9F232D;
  --color-700: #701F26;
  --color-800: #48181C;
  --color-900: #2C1113;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  fire-engine-red: {
    50: '#FEF0F1',
    100: '#FDD8DB',
    200: '#FCB1B7',
    300: '#F87782',
    400: '#EC4654',
    500: '#D22231',
    600: '#9F232D',
    700: '#701F26',
    800: '#48181C',
    900: '#2C1113',
  },
}

$base: #C40010;
$base-ink: #FFFFFF;
$base-50: #FEF0F1;
$base-100: #FDD8DB;
$base-200: #FCB1B7;
$base-300: #F87782;
$base-400: #EC4654;
$base-500: #D22231;
$base-600: #9F232D;
$base-700: #701F26;
$base-800: #48181C;
$base-900: #2C1113;
$base-hover: #9B000D;
$base-subtle: #F4ACB2;

{
    "color": {
        "base": {
            "value": "#C40010",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF0F1",
                "type": "color"
            },
            "100": {
                "value": "#FDD8DB",
                "type": "color"
            },
            "200": {
                "value": "#FCB1B7",
                "type": "color"
            },
            "300": {
                "value": "#F87782",
                "type": "color"
            },
            "400": {
                "value": "#EC4654",
                "type": "color"
            },
            "500": {
                "value": "#D22231",
                "type": "color"
            },
            "600": {
                "value": "#9F232D",
                "type": "color"
            },
            "700": {
                "value": "#701F26",
                "type": "color"
            },
            "800": {
                "value": "#48181C",
                "type": "color"
            },
            "900": {
                "value": "#2C1113",
                "type": "color"
            }
        }
    }
}