What color is #EF3524?

#EF3524 is a medium, vivid red. In RGB it is rgb(239, 53, 36), and in HSL hsl(5, 86%, 54%).

Is #EF3524 accessible as text?

On white, #EF3524 has a contrast ratio of 4.03:1 (fails WCAG AA for body text); on black it is 5.20:1 (passes). For text placed on #EF3524, use black for the best readability.

What is the closest Tailwind color to #EF3524?

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

What colors go well with #EF3524?

#EF3524 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #25DEEF. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #EF3524 below.

Is #EF3524 good for buttons?

#EF3524 works well for buttons and highlights, but use black text on #EF3524 — white text only reaches 4.03:1, below the 4.5:1 needed for normal-size labels.

Is #EF3524 the same as CSS red?

No — #EF3524 is not the CSS named color red, but red (#FF0000) is the closest CSS named color.

#EF3524 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #EF3524

Not just a swatch — here's how #EF3524 works with other colors. Named schemes with #EF3524 in its natural role, and a note on why the supporting colors balance it.

Sunset Warmth Glow · 5 colors

Glow #EF3524 Secondary #E76F53 Accent #EA9C35 Anchor #5C3950 Surface #F4E8D6

Vermilion glows at the center of this sunset palette, joined by coral and gold, deepened by a plum anchor and cooled with cream.

Japanese Sand Base · 5 colors

Base #EF3524 Surface #F0E9DC Highlight #F7F1E7 Secondary #BBAEA0 Ink #2B2723

Vermilion sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Warm Autumn Interior Dominant · 5 colors

Dominant #EF3524 Secondary #B76325 Accent #777743 Surface #F4EBDD Anchor #3B2A21

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

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #EF3524 Secondary #DF9F94 Support #9B9186 Ink #17140F

Vermilion 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 Vermilion carrying the quiet middle.

Luxury Packaging Feature · 5 colors

Feature #EF3524 Anchor #141210 Accent #D09E4D Secondary #322523 Surface #F2EDE3

Vermilion carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Build a working theme in the generator →

Color Lab

How #EF3524 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 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 41/100

Moderate

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

Naturalness 17/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 40/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 86/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 66/100

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 #EF3524

For UI

For branding

For interior

For fashion

People also use #EF3524 with

Strawberry Marigold Lagoon Blue 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 #F6DBD9 for cards and hover fills. Tint 80

Avoid beside #EF7925 — 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 #EF3524 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #EF3524;
  --color-base-rgb: 239 53 36;
  --color-base-oklch: oklch(62.1% 0.223 29.9);
  --color-50: #FEF1F0;
  --color-100: #FDDBD8;
  --color-200: #F9B9B3;
  --color-300: #EF8980;
  --color-400: #E05E52;
  --color-500: #C63B2F;
  --color-600: #96342B;
  --color-700: #6A2A25;
  --color-800: #451F1C;
  --color-900: #2A1513;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  vermilion: {
    50: '#FEF1F0',
    100: '#FDDBD8',
    200: '#F9B9B3',
    300: '#EF8980',
    400: '#E05E52',
    500: '#C63B2F',
    600: '#96342B',
    700: '#6A2A25',
    800: '#451F1C',
    900: '#2A1513',
  },
}

$base: #EF3524;
$base-ink: #141310;
$base-50: #FEF1F0;
$base-100: #FDDBD8;
$base-200: #F9B9B3;
$base-300: #EF8980;
$base-400: #E05E52;
$base-500: #C63B2F;
$base-600: #96342B;
$base-700: #6A2A25;
$base-800: #451F1C;
$base-900: #2A1513;
$base-hover: #CD1F0F;
$base-subtle: #F3C9C5;

{
    "color": {
        "base": {
            "value": "#EF3524",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF1F0",
                "type": "color"
            },
            "100": {
                "value": "#FDDBD8",
                "type": "color"
            },
            "200": {
                "value": "#F9B9B3",
                "type": "color"
            },
            "300": {
                "value": "#EF8980",
                "type": "color"
            },
            "400": {
                "value": "#E05E52",
                "type": "color"
            },
            "500": {
                "value": "#C63B2F",
                "type": "color"
            },
            "600": {
                "value": "#96342B",
                "type": "color"
            },
            "700": {
                "value": "#6A2A25",
                "type": "color"
            },
            "800": {
                "value": "#451F1C",
                "type": "color"
            },
            "900": {
                "value": "#2A1513",
                "type": "color"
            }
        }
    }
}