Palettes / Colors / #EF4E2B

#EF4E2B — Vivid Red

#EF4E2B is a red color we call Vivid Red, closest to the named color Tomato (#FF6347). It belongs to the red family.

Color name

Closest CSS keyword: tomato (#FF6347) — not an exact match. CSS tomato gives you #FF6347, a different color; use #EF4E2B when you need this exact shade.

Sources: common names follow widely used color-name references; CSS keywords and their hex values follow the CSS Color specification.

#EF4E2B is a warm red color associated with energy, passion and urgency. It is saturated enough to be the accent — buttons, highlights and calls to action — while neutrals do the quiet work around it.

Its strongest partner is its complement #2ACBEF; it also sits naturally between #EF2A68 and #EFB02A. In the palettes below you can see it working alongside real color combinations from our collection.

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Color values

RGB & CMYK percentages

Red 94% · Green 31% · Blue 17%

Cyan 0% · Magenta 67% · Yellow 82% · Key 6%

CMYK values are unprofiled approximations for screen reference — not a print-proofing guarantee.

Previews

CSS code for #EF4E2B

.text { color: #EF4E2B; }
.background { background-color: #EF4E2B; }
.border { border: 3px solid #EF4E2B; }
.text-rgb { color: rgb(239, 78, 43); }
.text-hsl { color: hsl(11, 86%, 55%); }
.text-shadow-hex { text-shadow: 4px 4px 2px #EF4E2B; }
.text-shadow-rgba { text-shadow: 4px 4px 2px rgba(239, 78, 43, 0.8); }
.box-shadow-hex { box-shadow: 1px 1px 3px 2px #EF4E2B; }
.box-shadow-rgba { box-shadow: 1px 1px 3px 2px rgba(239, 78, 43, 0.8); }

HTML: <p style="color:#EF4E2B">Text here</p> · <div style="background-color:#EF4E2B">Div content here</div>

Shades of #EF4E2B

Tints of #EF4E2B

Tones of #EF4E2B

Color harmonies

Complementary — #2ACBEF:

Analogous:

Triadic:

Contrast & accessibility

Best text color on #EF4E2B: #000000.

Semi-transparent (opacity) text on #EF4E2B

Text set with opacity blends into the background, so its real contrast is lower than the solid ratios above. Choose a text color and an opacity to see the blended color and its true ratio:

How #EF4E2B looks with color blindness

Simulated with standard Machado color-vision-deficiency matrices — useful when this color carries meaning in charts, maps or interfaces:

Closest design-system colors

The nearest matches in the Tailwind CSS, Material Design and Bootstrap palettes — handy when you need a framework class instead of a raw hex:

Palettes with a similar color

These palettes use a close neighbour of #EF4E2B rather than the exact color:

Similar colors

The closest colors that actually appear in our palette collection — click any to open its page:

Browse neighbouring colors

← #EF4E2A  ·  #EF4E2C →

Frequently asked questions

What color is #EF4E2B?

#EF4E2B is Vivid Red, a red color (RGB 239, 78, 43). Its closest standard named color is Tomato.

What is the RGB and HSL of #EF4E2B?

#EF4E2B is RGB 239, 78, 43 — HSL 11°, 86%, 55% — CMYK 0%, 67%, 82%, 6%.

What colors go with #EF4E2B?

Its complement is #2ACBEF; analogous partners are #EF2A68 and #EFB02A. It also appears in 6+ palettes in our collection.

Can I use #EF4E2B for text?

Black text on #EF4E2B has a contrast ratio of 5.79:1 (passes WCAG AA); white text gives 3.62:1.