What color is #C31D23?

#C31D23 is a medium, vivid red. In RGB it is rgb(195, 29, 35), and in HSL hsl(358, 74%, 44%).

Is #C31D23 accessible as text?

On white, #C31D23 has a contrast ratio of 5.97:1 (passes WCAG AA for body text); on black it is 3.52:1 (fails). For text placed on #C31D23, use white for the best readability.

What is the closest Tailwind color to #C31D23?

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

What colors go well with #C31D23?

#C31D23 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #1DC3BE. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #C31D23 below.

Is #C31D23 good for buttons?

#C31D23 works well for buttons and highlights, but use white text on #C31D23 — black text only reaches 3.52:1, below the 4.5:1 needed for normal-size labels.

Is #C31D23 the same as CSS firebrick?

No — #C31D23 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.

#C31D23 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #C31D23

Not just a swatch — here's how #C31D23 works with other colors. Named schemes with #C31D23 in its natural role, and a note on why the supporting colors balance it.

Sunset Warmth Glow · 5 colors

Glow #C31D23 Secondary #E76F54 Accent #EB9C35 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 #C31D23 Anchor #3A2A21 Surface #F0E2D0 Accent #969664 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 #C31D23 Secondary #7B4927 Surface #EAD9C0 Accent #43503A Anchor #5A222E

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 #C31D23 Surface #F3E6D6 Anchor #5F2037 Accent #E6C2C1 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 #C31D23 Secondary #BB847D Support #9B9186 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.

Build a working theme in the generator →

Color Lab

How #C31D23 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 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 51/100

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 39/100

Low

A faint retro warmth without tipping into sepia.

Luxury 49/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 77/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 87/100

Very high

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

Surface fit 10/100

Very low

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

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #C31D23

For UI

For branding

For interior

For fashion

People also use #C31D23 with

Medium Violet Red Ochre Tiffany Blue 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 6.0:1. Use

Subtle surface Use #F2D3D4 for cards and hover fills. Tint 80

Avoid beside #C34F1D — 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 #C31D23 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: #C31D23;
  --color-base-rgb: 195 29 35;
  --color-base-oklch: oklch(52.5% 0.198 26.3);
  --color-50: #FEF1F2;
  --color-100: #FBDBDC;
  --color-200: #F4B8BA;
  --color-300: #E7888B;
  --color-400: #D65C60;
  --color-500: #BC393E;
  --color-600: #8F3336;
  --color-700: #652A2C;
  --color-800: #421F20;
  --color-900: #291515;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cardinal: {
    50: '#FEF1F2',
    100: '#FBDBDC',
    200: '#F4B8BA',
    300: '#E7888B',
    400: '#D65C60',
    500: '#BC393E',
    600: '#8F3336',
    700: '#652A2C',
    800: '#421F20',
    900: '#291515',
  },
}

$base: #C31D23;
$base-ink: #FFFFFF;
$base-50: #FEF1F2;
$base-100: #FBDBDC;
$base-200: #F4B8BA;
$base-300: #E7888B;
$base-400: #D65C60;
$base-500: #BC393E;
$base-600: #8F3336;
$base-700: #652A2C;
$base-800: #421F20;
$base-900: #291515;
$base-hover: #9C171C;
$base-subtle: #ECBCBE;

{
    "color": {
        "base": {
            "value": "#C31D23",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF1F2",
                "type": "color"
            },
            "100": {
                "value": "#FBDBDC",
                "type": "color"
            },
            "200": {
                "value": "#F4B8BA",
                "type": "color"
            },
            "300": {
                "value": "#E7888B",
                "type": "color"
            },
            "400": {
                "value": "#D65C60",
                "type": "color"
            },
            "500": {
                "value": "#BC393E",
                "type": "color"
            },
            "600": {
                "value": "#8F3336",
                "type": "color"
            },
            "700": {
                "value": "#652A2C",
                "type": "color"
            },
            "800": {
                "value": "#421F20",
                "type": "color"
            },
            "900": {
                "value": "#291515",
                "type": "color"
            }
        }
    }
}