What color is #EF603F?

#EF603F is a warm, earthy red-orange. In RGB it is rgb(239, 96, 63), and in HSL hsl(11, 85%, 59%).

Is #EF603F accessible as text?

On white, #EF603F has a contrast ratio of 3.27:1 (fails WCAG AA for body text); on black it is 6.42:1 (passes). For text placed on #EF603F, use black for the best readability.

What is the closest Tailwind color to #EF603F?

The nearest Tailwind CSS token is orange-600 (#F54900).

What colors go well with #EF603F?

#EF603F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3ECFEF. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #EF603F below.

Is #EF603F good for buttons?

#EF603F works well for buttons and highlights, but use black text on #EF603F — white text only reaches 3.27:1, below the 4.5:1 needed for normal-size labels.

Is #EF603F the same as CSS tomato?

No — #EF603F is not the CSS named color tomato, but tomato (#FF6347) is the closest CSS named color.

#EF603F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #EF603F

Not just a swatch — here's how #EF603F works with other colors. Named schemes with #EF603F in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #EF603F Secondary #B76324 Accent #777743 Surface #F4ECDD Anchor #3B2A20

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

Desert Clay Center · 5 colors

Center #EF603F Surface #E3CEA8 Secondary #B17957 Accent #97976D Anchor #3E2C21

Tomato Red holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Coastal Morning Lead · 5 colors

Lead #EF603F Accent #ADC3B3 Surface #E6D7BE Secondary #9BA09E Anchor #28314B

Tomato Red opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Japanese Sand Base · 5 colors

Base #EF603F Surface #F0E9DC Highlight #F7F1E7 Secondary #BBAE9F Ink #2B2723

Tomato Red 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #EF603F Secondary #E6B2A5 Support #9B9186 Ink #17140F

Tomato 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 Tomato Red carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #EF603F 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 98/100

Warm

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

Softness 44/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

Low

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

Naturalness 52/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 40/100

Low

A faint retro warmth without tipping into sepia.

Luxury 38/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 71/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 67/100

High

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

Surface fit 23/100

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 #EF603F

For UI

For branding

For interior

For fashion

People also use #EF603F with

Strawberry Saffron Lagoon Blue Gainsboro Taupe

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 5.7:1. Use

Subtle surface Use #F7E2DD for cards and hover fills. Tint 80

Avoid beside #EF993E — 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 #EF603F 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: #EF603F;
  --color-base-rgb: 239 96 63;
  --color-base-oklch: oklch(66.7% 0.183 34.4);
  --color-50: #FEF3F0;
  --color-100: #FDDFD8;
  --color-200: #F9C0B4;
  --color-300: #EE9581;
  --color-400: #DF6C53;
  --color-500: #C54B30;
  --color-600: #963F2C;
  --color-700: #6A3225;
  --color-800: #45241C;
  --color-900: #2A1713;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  tomato-red: {
    50: '#FEF3F0',
    100: '#FDDFD8',
    200: '#F9C0B4',
    300: '#EE9581',
    400: '#DF6C53',
    500: '#C54B30',
    600: '#963F2C',
    700: '#6A3225',
    800: '#45241C',
    900: '#2A1713',
  },
}

$base: #EF603F;
$base-ink: #141310;
$base-50: #FEF3F0;
$base-100: #FDDFD8;
$base-200: #F9C0B4;
$base-300: #EE9581;
$base-400: #DF6C53;
$base-500: #C54B30;
$base-600: #963F2C;
$base-700: #6A3225;
$base-800: #45241C;
$base-900: #2A1713;
$base-hover: #DF3812;
$base-subtle: #F4D3CB;

{
    "color": {
        "base": {
            "value": "#EF603F",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF3F0",
                "type": "color"
            },
            "100": {
                "value": "#FDDFD8",
                "type": "color"
            },
            "200": {
                "value": "#F9C0B4",
                "type": "color"
            },
            "300": {
                "value": "#EE9581",
                "type": "color"
            },
            "400": {
                "value": "#DF6C53",
                "type": "color"
            },
            "500": {
                "value": "#C54B30",
                "type": "color"
            },
            "600": {
                "value": "#963F2C",
                "type": "color"
            },
            "700": {
                "value": "#6A3225",
                "type": "color"
            },
            "800": {
                "value": "#45241C",
                "type": "color"
            },
            "900": {
                "value": "#2A1713",
                "type": "color"
            }
        }
    }
}