What color is #CA1637?

#CA1637 is a medium, vivid red. In RGB it is rgb(202, 22, 55), and in HSL hsl(349, 80%, 44%).

Is #CA1637 accessible as text?

On white, #CA1637 has a contrast ratio of 5.70:1 (passes WCAG AA for body text); on black it is 3.68:1 (fails). For text placed on #CA1637, use white for the best readability.

What is the closest Tailwind color to #CA1637?

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

What colors go well with #CA1637?

#CA1637 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #16CAA9. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #CA1637 below.

Is #CA1637 good for buttons?

#CA1637 works well for buttons and highlights, but use white text on #CA1637 — black text only reaches 3.68:1, below the 4.5:1 needed for normal-size labels.

Is #CA1637 the same as CSS crimson?

No — #CA1637 is not the CSS named color crimson, but crimson (#DC143C) is the closest CSS named color.

#CA1637 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #CA1637

Not just a swatch — here's how #CA1637 works with other colors. Named schemes with #CA1637 in its natural role, and a note on why the supporting colors balance it.

Sunset Warmth Glow · 5 colors

Glow #CA1637 Secondary #E76E55 Accent #EB9B37 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 #CA1637 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 #CA1637 Secondary #7C4928 Surface #EAD9C0 Accent #434F3A 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 #CA1637 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 #CA1637 Secondary #C08685 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.

Build a working theme in the generator →

Color Lab

How #CA1637 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 93/100

Warm

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 50/100

Moderate

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

Naturalness 22/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 48/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 80/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 84/100

Very high

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

Surface fit 11/100

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 #CA1637

For UI

For branding

For interior

For fashion

People also use #CA1637 with

Fuchsia Tawny Tiffany Blue 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 5.7:1. Use

Subtle surface Use #F3D2D8 for cards and hover fills. Tint 80

Avoid beside #CA3116 — 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 #CA1637 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: #CA1637;
  --color-base-rgb: 202 22 55;
  --color-base-oklch: oklch(53.8% 0.206 20.2);
  --color-50: #FEF1F3;
  --color-100: #FCD9E0;
  --color-200: #F7B6C2;
  --color-300: #EB8497;
  --color-400: #DB576F;
  --color-500: #C1344E;
  --color-600: #932F41;
  --color-700: #682733;
  --color-800: #441D24;
  --color-900: #291418;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  cardinal: {
    50: '#FEF1F3',
    100: '#FCD9E0',
    200: '#F7B6C2',
    300: '#EB8497',
    400: '#DB576F',
    500: '#C1344E',
    600: '#932F41',
    700: '#682733',
    800: '#441D24',
    900: '#291418',
  },
}

$base: #CA1637;
$base-ink: #FFFFFF;
$base-50: #FEF1F3;
$base-100: #FCD9E0;
$base-200: #F7B6C2;
$base-300: #EB8497;
$base-400: #DB576F;
$base-500: #C1344E;
$base-600: #932F41;
$base-700: #682733;
$base-800: #441D24;
$base-900: #291418;
$base-hover: #A2122C;
$base-subtle: #EEBAC4;

{
    "color": {
        "base": {
            "value": "#CA1637",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF1F3",
                "type": "color"
            },
            "100": {
                "value": "#FCD9E0",
                "type": "color"
            },
            "200": {
                "value": "#F7B6C2",
                "type": "color"
            },
            "300": {
                "value": "#EB8497",
                "type": "color"
            },
            "400": {
                "value": "#DB576F",
                "type": "color"
            },
            "500": {
                "value": "#C1344E",
                "type": "color"
            },
            "600": {
                "value": "#932F41",
                "type": "color"
            },
            "700": {
                "value": "#682733",
                "type": "color"
            },
            "800": {
                "value": "#441D24",
                "type": "color"
            },
            "900": {
                "value": "#291418",
                "type": "color"
            }
        }
    }
}