What color is #EF312B?

#EF312B is a medium, vivid red. In RGB it is rgb(239, 49, 43), and in HSL hsl(2, 86%, 55%).

Is #EF312B accessible as text?

On white, #EF312B has a contrast ratio of 4.08:1 (fails WCAG AA for body text); on black it is 5.14:1 (passes). For text placed on #EF312B, use black for the best readability.

What is the closest Tailwind color to #EF312B?

The nearest Tailwind CSS token is red-500 (#FB2C36).

What colors go well with #EF312B?

#EF312B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #2AE8EF. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #EF312B below.

Is #EF312B good for buttons?

#EF312B works well for buttons and highlights, but use black text on #EF312B — white text only reaches 4.08:1, below the 4.5:1 needed for normal-size labels.

Is #EF312B the same as CSS red?

No — #EF312B is not the CSS named color red, but red (#FF0000) is the closest CSS named color.

#EF312B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #EF312B

Not just a swatch — here's how #EF312B works with other colors. Named schemes with #EF312B in its natural role, and a note on why the supporting colors balance it.

Sunset Warmth Glow · 5 colors

Glow #EF312B Secondary #E76F53 Accent #EA9C35 Anchor #5C3951 Surface #F5E8D6

Imperial 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 #EF312B Anchor #3A2A21 Surface #F0E2D0 Accent #969664 Secondary #3C3833

Imperial 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 #EF312B Secondary #7B4927 Surface #EAD9C0 Accent #43503A Anchor #5A222E

Imperial 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 #EF312B Surface #F3E6D6 Anchor #5F2037 Accent #E6C2C1 Secondary #332B2E

Imperial 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 #EF312B Secondary #DE9E95 Support #9B9186 Ink #17140F

Imperial 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 Imperial Red carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #EF312B 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 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 42/100

Moderate

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

Naturalness 15/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 40/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 87/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 65/100

High

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

Surface fit 19/100

Very low

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

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #EF312B

For UI

For branding

For interior

For fashion

People also use #EF312B with

Strawberry Marigold Medium Turquoise Gainsboro Espresso

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 4.6:1. Use

Subtle surface Use #F6DBDA for cards and hover fills. Tint 80

Avoid beside #EF722A — 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 #EF312B 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: #EF312B;
  --color-base-rgb: 239 49 43;
  --color-base-oklch: oklch(61.9% 0.225 28.1);
  --color-50: #FEF1F0;
  --color-100: #FDD9D8;
  --color-200: #F9B6B3;
  --color-300: #EF8480;
  --color-400: #E05752;
  --color-500: #C6342F;
  --color-600: #962F2B;
  --color-700: #6A2725;
  --color-800: #451D1C;
  --color-900: #2A1413;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  imperial-red: {
    50: '#FEF1F0',
    100: '#FDD9D8',
    200: '#F9B6B3',
    300: '#EF8480',
    400: '#E05752',
    500: '#C6342F',
    600: '#962F2B',
    700: '#6A2725',
    800: '#451D1C',
    900: '#2A1413',
  },
}

$base: #EF312B;
$base-ink: #141310;
$base-50: #FEF1F0;
$base-100: #FDD9D8;
$base-200: #F9B6B3;
$base-300: #EF8480;
$base-400: #E05752;
$base-500: #C6342F;
$base-600: #962F2B;
$base-700: #6A2725;
$base-800: #451D1C;
$base-900: #2A1413;
$base-hover: #D11610;
$base-subtle: #F3C8C6;

{
    "color": {
        "base": {
            "value": "#EF312B",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF1F0",
                "type": "color"
            },
            "100": {
                "value": "#FDD9D8",
                "type": "color"
            },
            "200": {
                "value": "#F9B6B3",
                "type": "color"
            },
            "300": {
                "value": "#EF8480",
                "type": "color"
            },
            "400": {
                "value": "#E05752",
                "type": "color"
            },
            "500": {
                "value": "#C6342F",
                "type": "color"
            },
            "600": {
                "value": "#962F2B",
                "type": "color"
            },
            "700": {
                "value": "#6A2725",
                "type": "color"
            },
            "800": {
                "value": "#451D1C",
                "type": "color"
            },
            "900": {
                "value": "#2A1413",
                "type": "color"
            }
        }
    }
}