What color is #CB3E31?

#CB3E31 is a medium red. In RGB it is rgb(203, 62, 49), and in HSL hsl(5, 61%, 49%).

Is #CB3E31 accessible as text?

On white, #CB3E31 has a contrast ratio of 4.91:1 (passes WCAG AA for body text); on black it is 4.27:1 (fails). For text placed on #CB3E31, use white for the best readability.

What is the closest Tailwind color to #CB3E31?

The nearest Tailwind CSS token is orange-700 (#CA3500).

What colors go well with #CB3E31?

#CB3E31 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #31BCC9. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #CB3E31 below.

Is #CB3E31 good for buttons?

#CB3E31 works well for buttons and highlights, but use white text on #CB3E31 — black text only reaches 4.27:1, below the 4.5:1 needed for normal-size labels.

Is #CB3E31 the same as CSS crimson?

No — #CB3E31 is not the CSS named color crimson, but crimson (#DC143C) is the closest CSS named color.

#CB3E31 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #CB3E31

Not just a swatch — here's how #CB3E31 works with other colors. Named schemes with #CB3E31 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #CB3E31 Secondary #B76325 Accent #777743 Surface #F4EBDD Anchor #3B2A21

This palette keeps Fire Engine Red as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Modern Café Dominant · 5 colors

Dominant #CB3E31 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 #CB3E31 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 #CB3E31 Surface #F3E6D6 Anchor #5F2037 Accent #E6C2C1 Secondary #332B2D

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 #CB3E31 Secondary #C5938A 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.

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Color Lab

How #CB3E31 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 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 46/100

Moderate

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

Naturalness 51/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 47/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 92/100

Very high

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

Surface fit 14/100

Very low

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

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #CB3E31

For UI

For branding

For interior

For fashion

People also use #CB3E31 with

Mulberry Caramel 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 4.9:1. Use

Subtle surface Use #F0DBDA for cards and hover fills. Tint 80

Avoid beside #C97031 — 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 #CB3E31 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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: #CB3E31;
  --color-base-rgb: 203 62 49;
  --color-base-oklch: oklch(56.8% 0.180 29.2);
  --color-50: #FCF3F2;
  --color-100: #F8E0DD;
  --color-200: #EFC2BD;
  --color-300: #DF9790;
  --color-400: #CB6F67;
  --color-500: #B04E45;
  --color-600: #87413B;
  --color-700: #60332F;
  --color-800: #3F2422;
  --color-900: #271816;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  fire-engine-red: {
    50: '#FCF3F2',
    100: '#F8E0DD',
    200: '#EFC2BD',
    300: '#DF9790',
    400: '#CB6F67',
    500: '#B04E45',
    600: '#87413B',
    700: '#60332F',
    800: '#3F2422',
    900: '#271816',
  },
}

$base: #CB3E31;
$base-ink: #FFFFFF;
$base-50: #FCF3F2;
$base-100: #F8E0DD;
$base-200: #EFC2BD;
$base-300: #DF9790;
$base-400: #CB6F67;
$base-500: #B04E45;
$base-600: #87413B;
$base-700: #60332F;
$base-800: #3F2422;
$base-900: #271816;
$base-hover: #A13127;
$base-subtle: #EAC9C6;

{
    "color": {
        "base": {
            "value": "#CB3E31",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FCF3F2",
                "type": "color"
            },
            "100": {
                "value": "#F8E0DD",
                "type": "color"
            },
            "200": {
                "value": "#EFC2BD",
                "type": "color"
            },
            "300": {
                "value": "#DF9790",
                "type": "color"
            },
            "400": {
                "value": "#CB6F67",
                "type": "color"
            },
            "500": {
                "value": "#B04E45",
                "type": "color"
            },
            "600": {
                "value": "#87413B",
                "type": "color"
            },
            "700": {
                "value": "#60332F",
                "type": "color"
            },
            "800": {
                "value": "#3F2422",
                "type": "color"
            },
            "900": {
                "value": "#271816",
                "type": "color"
            }
        }
    }
}

Palettes built on #CB3E31

Color Lab

Pairs with #CB3E31

UI roles & guardrails

In real applications

Scales

Every model

Export